Sierra Vista, Arizona

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Sierra Vista
Hummingbird Capital of the United States
Cochise County Arizona Incorporated and Unincorporated areas Sierra Vista Highlighted 0466820.svg
Location of Sierra Vista in Cochise County, Arizona
Usa edcp location map.svg
Red pog.svg
Sierra Vista
Location in the United States
Coordinates: 31°32′44″N110°16′35″W / 31.54556°N 110.27639°W / 31.54556; -110.27639 Coordinates: 31°32′44″N110°16′35″W / 31.54556°N 110.27639°W / 31.54556; -110.27639
Country United States
State Arizona
County Cochise
   Mayor Rick Mueller
  Total152.48 sq mi (394.92 km2)
  Land152.22 sq mi (394.24 km2)
  Water0.26 sq mi (0.68 km2)
4,633 ft (1,412 m)
 (2010) [2]
(2018) [3]
  Density291.82/sq mi (112.67/km2)
Time zone UTC−7 (MST (no DST))
ZIP codes
Area code 520
FIPS code 04-66820

Sierra Vista is a city in Cochise County, Arizona, United States. As of the 2010 census the population of the city was 43,888. [4] The city is part of the Sierra Vista-Douglas Metropolitan Area, [5] with a 2010 population of 131,346. Fort Huachuca, a U.S. Army post, is located in the northwest part of the city.

Cochise County, Arizona County in the Arizona, United States

Cochise County is located in the southeastern corner of the U.S. state of Arizona. The population was 131,346 at the 2010 census. The county seat is Bisbee.

United States Federal republic in North America

The United States of America (USA), commonly known as the United States or America, is a country comprising 50 states, a federal district, five major self-governing territories, and various possessions. At 3.8 million square miles, the United States is the world's third or fourth largest country by total area and is slightly smaller than the entire continent of Europe. With a population of over 327 million people, the U.S. is the third most populous country. The capital is Washington, D.C., and the most populous city is New York City. Most of the country is located contiguously in North America between Canada and Mexico.

2010 United States Census 23rd national census of the United States, taken in 2010

The 2010 United States Census is the twenty-third and most recent United States national census. National Census Day, the reference day used for the census, was April 1, 2010. The census was taken via mail-in citizen self-reporting, with enumerators serving to spot-check randomly selected neighborhoods and communities. As part of a drive to increase the count's accuracy, 635,000 temporary enumerators were hired. The population of the United States was counted as 308,745,538, a 9.7% increase from the 2000 Census. This was the first census in which all states recorded a population of over half a million people as well as the first in which all 100 largest cities recorded populations of over 200,000.


Sierra Vista, which is Spanish for "Mountain View", is located 75 miles (121 km) southeast of Tucson and serves as the main commercial, cultural, and recreational hub of Cochise County.

Tucson, Arizona City in Arizona, United States

Tucson is a city in and the county seat of Pima County, Arizona, United States, and is also home to the University of Arizona. The 2010 United States Census put the population at 520,116, while the 2015 estimated population of the entire Tucson metropolitan statistical area (MSA) was 980,263. The Tucson MSA forms part of the larger Tucson-Nogales combined statistical area (CSA), with a total population of 1,010,025 as of the 2010 Census. Tucson is the second most-populated city in Arizona behind Phoenix, both of which anchor the Arizona Sun Corridor. The city is 108 miles (174 km) southeast of Phoenix and 60 mi (97 km) north of the U.S.–Mexico border. Tucson is the 33rd largest city and the 58th largest metropolitan area in the United States (2014).


As evidenced by several neolithic sites [6] and known archeological sites, Paleo-Indians [7] have been in southern Arizona from at least 12,000 years ago. It was the home to a large Sobaipuri, [8] Pueblo near Fairbank [9] which had several smaller pueblos and settlements [10] throughout the valley, [11] [12] a Spanish Fort, Presidio Santa Cruz de Terrenate [10] [13] between modern Huachuca City , Whetstone and Tombstone, on the Western bank of the San Pedro River. [8] along with sparse Spanish settlers supporting the route to Tucson's Mission San Xavier del Bac and Presidio San Agustín del Tucsón . [14] [15] [16]

Paleo-Indians classification term given to the first peoples who entered the American continents

Paleo-Indians, Paleoindians or Paleoamericans were the first peoples who entered, and subsequently inhabited, the Americas during the final glacial episodes of the late Pleistocene period. The prefix "paleo-" comes from the Greek adjective palaios (παλαιός), meaning "old" or "ancient". The term "Paleo-Indians" applies specifically to the lithic period in the Western Hemisphere and is distinct from the term "Paleolithic".

The Sobaipuri were one of many indigenous groups occupying Sonora and what is now Arizona at the time Europeans first entered the American Southwest. They were a Piman or O'odham group who occupied southern Arizona and northern Sonora in the 15th-19th centuries. They were a subgroup of the O'odham or Pima, surviving members of which include the residents of San Xavier del Bac which is now part of the Tohono O'odham Nation and the Akimel O'odham.

Presidio Santa Cruz de Terrenate

The Presidio Santa Cruz de Terrenate is a former Spanish military presidio, or fortress, located roughly west of the town of Tombstone, Arizona, in the United States of America.

Like most of Cochise County it was part of the Gadsden Purchase. [17] At the end of the Apache Wars, with the protection of Fort Huachuca [18] and the completion of the Southern Pacific and El Paso & Southwestern railroads, the San Pedro Valley began to be populated by American Settlers. [19] [20]

Gadsden Purchase A land purchase from Mexico by the United States.

The Gadsden Purchase, known in Mexico as Spanish: Venta de La Mesilla, is a 29,670-square-mile (76,800 km2) region of present-day southern Arizona and southwestern New Mexico that the United States acquired from Mexico by the Treaty of Mesilla, which took effect on June 8, 1854. The purchase included lands south of the Gila River and west of the Rio Grande where the U.S. wanted to build a transcontinental railroad along a deep southern route, which the Southern Pacific Railroad later completed in 1881–1883. The purchase also aimed to resolve other border issues.

Apache Wars armed conflicts between indigenous peoples and the US Army from 1849 to circa 1924

The Apache Wars were a series of armed conflicts between the United States Army and various Apache nations fought in the southwest between 1849 and 1886, though minor hostilities continued until as late as 1924. The United States inherited conflicts between American invaders and Apache groups when Mexico ceded territory after the Mexican–American War in 1846. These conflicts were continued as new United States citizens came into traditional Apache lands to raise livestock, crops and to mine minerals.

Fort Huachuca US Army base

Fort Huachuca is a United States Army installation, established on 3 March 1877 as Camp Huachuca. The garrison is now under the command of the United States Army Installation Management Command. It is located in Cochise County, in southeast Arizona, approximately 15 miles (24 km) north of the border with Mexico and at the northern end of the Huachuca Mountains, adjacent to the town of Sierra Vista. From 1913 to 1933, the fort was the base for the "Buffalo Soldiers" of the 10th Cavalry Regiment. During the build-up of World War II, the fort had quarters for more than 25,000 male soldiers and hundreds of WACs. In the 2010 census, Fort Huachuca had a population of about 6,500 active duty soldiers, 7,400 military family members, and 5,000 civilian employees. Fort Huachuca has over 18,000 people on post during the peak working hours of 0700 and 1600 on weekdays, making it one of the busiest Army installations.

The first business that opened just outside the east gate of Fort Huachuca was a saloon and house of ill repute owned by John and Ellen Reilly opened in 1892. In 1911, Margaret Carmichael [21] bought the Reilly homestead and business. By 1913, Margaret Carmichael had leased the business back to the Reillys. Also in 1913, a group of dry land farmers settled in the local area and named their settlement Buena. Buena was located east of Garden Canyon, between Lewis Springs and Fort Huachuca East of the junction of present-day Hwy 90 and Hwy 92. [8] At this site was a post office and a school house that served children in Buena, Garden Canyon and outreaches of the local area. Oliver Fry [21] and his two oldest sons traveled from Texas on the railroad and settled on 320 acres (1.3 km2) just east of Fort Huachuca in January, 1913. [8]

Western saloon historical type of American bar

A Western saloon is a kind of bar particular to the Old West. Saloons served customers such as fur trappers, cowboys, soldiers, lumberjacks, businessmen, lawmen, miners and gamblers. A saloon might also be known as a "watering trough, bughouse, shebang, cantina, grogshop, and gin mill". The first saloon was established at Brown's Hole, Wyoming, in 1822, to serve fur trappers.

Texas U.S. state in the United States

Texas is the second largest state in the United States by area and population. Geographically located in the South Central region of the country, Texas shares borders with the U.S. states of Louisiana to the east, Arkansas to the northeast, Oklahoma to the north, New Mexico to the west, and the Mexican states of Chihuahua, Coahuila, Nuevo León, and Tamaulipas to the southwest, and has a coastline with the Gulf of Mexico to the southeast.

By 1917, the Overton Post Office was established. This name came from the Overton Mercantile and Investment Company, who took option on the Carmichael property with plans to develop a townsite outside of Fort Huachuca. However, it is believed that the company was unable to persuade anyone to move to the area so when the option expired, the Carmichael's took back the property with a general mercantile store and the post office.

In 1918, the Carmichaels changed the name of the store and named it after the Garden Canyon Sawmill. [8] They also called their Post Office where Carmichael was the postmaster Garden Canyon. [8] In addition, the Carmichael's built a home across the street from Garden Canyon store, as well as 18 rock houses, on Garden Avenue. From 1927 to 1938, the Frys rented the Carmichael store and ran the post office. The Frys established their own General Store and the first official federally recognized Post office established in 1938 as Fry Post office, so the name of this settlement changed to Fry. [8] By World War II, Fry's reputation was less than salubrious. According to the "Employment of Negro Troops" (CMH), "Because it was surrounded by a desert with no nearby communities and because it was located in a part of the country with practically no Negro population, Fort Huachuca, since the days when it was a frontier post garrisoned with Negro soldiers of the old regiments, had considered Fry a quasi-necessary adjunct.... In Fry lived women.... As the post commander described it in 1942: The small town of Fry is dirty, unsanitary and squalid. It has been so for many years. It was made worse in these respects during the construction of the cantonment...." (p. 282)

When the base was reactivated in February 1, 1954 the base commander Brigadier General Emil Lenzner, pushed for incorporation as both a way to solve the on base housing problems as well as to distance themselves from reputation of "The White City" and Fry Town Settlement, hoping to encourage people to want to live off base in a more family friendly community, away from undesirables like the minorities allowed to live unsegregated in Fry Town. [8] Petitions for incorporation began to be filed in 1955 and were legally accepted in 1956 which included what had been Garden Canyon and Buena but pointedly did not include most of Fry Town as a way in part to keep a Federal Housing Authority (FHA) housing project contacts for housing off post away from the Fry Town area was used as an excuse to incorporate and begin getting a share of tax revenues without having to pay the Fry family for the parts of Fry Town considered desirable and wholesome. [8]

In 1955, the first attempt to incorporate and rename the area was rejected, as Fry opposed both incorporating and renaming the town that bore his family name. In 1956, the ballot issue failed 76 to 61. People who owned land outside of Fry's property in the area of Garden Canyon/Overton and Buena, as well as parts of Fry [8] went forward with incorporation and renaming by petition on May 26, 1956, excluding the half-square-mile owned by Fry that included the local red light district called "the White City" as well as off base housing of the African-American "Buffalo" soldier officers families, [22] [23] and other minorities and groups they considered undesirable in the 1950s. [8] [24] [25] They were described as the "Fry People." [22]

Sierra Vista was incorporated in 1956, and has a population of over 43,000 today. The city is the economic and commercial center of Cochise County, and northern Sonora, Mexico. Sierra Vista annexed Fort Huachuca, a U.S. military base, one of the largest employers in Arizona, and the adjacent community, in 1971.

The proposed city counsel held a radio contest [22] asking for names of the proposed town. Marie Pfister the city clerk asked her friend Nola Walker to store the suggestions. When the town was approved, they called Nola for the contest winner, but without counting the votes she told them her personal entry of "Sierra Vista" was the winner. On July 13, 2006 at a special ceremony during the city's 50th anniversary, Nola was granted "clemency" for her misrepresentation of the vote. [24]

In 1961 the town grew large enough to have the name changed to a city allowing establishment of a community college. [8] In 1973 Ethel Berger became the first female mayor in Arizona. [8] [24] [25] In the 1970s the Art in the Park Festival was established by a committee of Army Wives, with it proceeds benefiting the Huachuca Arts Association, and college scholarships. [8] [25]

Sierra Vista was the site of the first McDonald's drive thru, which opened in 1975. [26] The owner, Dave Rich, drove the innovative approach to gain the business of the soldiers from nearby Fort Huachuca. At that time, soldiers were not allowed to wear their military fatigues off of the military base. [27] [8]

Known historical names for the area: [8] [22] [24]


Sierra Vista is located in southwestern Cochise County at 31°32′44″N110°16′35″W / 31.54556°N 110.27639°W / 31.54556; -110.27639 (31.545498, −110.276500). [28] It is bordered on the northwest by the much smaller town of Huachuca City.

According to the United States Census Bureau, the city has a total area of 152.5 square miles (395.1 km2), of which 152.3 square miles (394.4 km2) is land and 0.27 square miles (0.7 km2) is water. It is located 4,623 feet (1,409 m) above sea level. Sierra Vista is flanked on the southwest side by the Huachuca Mountains, with Miller Peak rising to 9,466 feet (2,885 m) and Carr Peak to 9,236 feet (2,815 m), both south of the city limits. The city is accessible via Arizona State Routes 90 and 92. The San Pedro River flows just east of the city limits.

Geography surrounding Sierra Vista Sierra vista map.jpg
Geography surrounding Sierra Vista


Huachuca Mountains in the winter Huachuca Mountains in the Winter2.jpg
Huachuca Mountains in the winter

In the Köppen climate classification system, Sierra Vista falls within the typical cold semi-arid climate (BSk) of mid-altitude Arizona. Fall and spring, like most other parts of Arizona, are very dry. Winters are cool to cold with frosts which can occasionally be hard freezes; frost can be expected to stop in mid- to late April. Spring, like fall, spends about half of itself within the frost season. Summer starts off dry, but progressively gets wetter as the monsoon season approaches. The city has a fairly stable climate with very little humidity. However, the North American Monsoon can bring torrential rains during the months of July and August and will produce almost half the yearly rainfall in just those two months alone. Due to the dry climate the rest of the year and the city’s high elevation, daily winter low temperatures range from 20 to 30 °F (−6.7 to −1.1 °C) on average and up to 50 °F (10.0 °C) on rare occasions when moist fronts bring warm air from the Gulf of California. Snow is not a common sight on the streets of Sierra Vista though some years the city can receive several inches of snow and other years it will receive none. However, a snow-capped Miller Peak and Carr Peak in the Huachuca Mountains is a common sight for four to five months every year.

Climate data for Sierra Vista, Arizona
Record high °F (°C)81
Average high °F (°C)61.2
Average low °F (°C)34.2
Record low °F (°C)12
Average rainfall inches (mm)0.98
Average snowfall inches (cm)0.3
Average rainy days (≥ 0.01 in)4422121112532452
Source: National Weather Service, Tucson [30]

Parks and outdoors

Montezuma Pass at Coronado National Memorial. The United States / Mexican border fence can be seen in the middle of this photograph. Mexico is on the right / south side of the fence. Montezumapass.JPG
Montezuma Pass at Coronado National Memorial. The United States / Mexican border fence can be seen in the middle of this photograph. Mexico is on the right / south side of the fence.

Nicknamed the "Hummingbird Capital of the United States", the city sees bird watchers from all over the world flock to the nearby Ramsey Canyon Preserve and other local canyons to observe and photograph hundreds of different bird species. Other outdoor sightseeing and recreational opportunities that are nearby include the San Pedro Riparian National Conservation Area, the Coronado National Memorial in the Huachuca Mountains, and Parker Canyon Lake. Excellent views of the clear night sky have led Sierra Vista to become the chosen center of amateur astronomy in Arizona, with more than a dozen well equipped amateur observatories in the area and a large observatory at the University of Arizona South within the city limits.

The Cove

The Sierra Vista Aquatic Center, aka "The Cove," is a 36,500-square-foot (3,390 m2) facility that contains 11,347 sq ft (1,054.2 m2) of pool water surface, which equates to over 575,000 US gallons (2,180,000 l; 479,000 imp gal) of water. The Aquatic Center boasts a 0' depth, or "beach", entry, eight 25-yard lap lanes for lap and competitive swimming, and a wave machine with several wave patterns for Open Swim. The Cove has a submersible bulkhead which makes the switch from wave pool to competitive pool possible. The Cove also has a warm water therapy pool, children's lagoon with slide, two 1 meter diving boards and one 3 meter diving board, and two enclosed water tube slides to include a 150-foot (46 m) water tube slide. [31]


Historical population
1960 3,121
1970 6,689114.3%
1980 24,937272.8%
1990 32,98332.3%
2000 37,77514.5%
2010 43,88816.2%
Est. 201844,420 [3] 1.2%
U.S. Decennial Census [32]

Sierra Vista is the largest of seven incorporated cities in Cochise County, accounting for one-third of the county's population. [33] The population at the 2010 census was 43,888, up from 37,775 at the 2000 census, for a growth rate of 16.2% over the decade. Sierra Vista is the 21st largest incorporated place in Arizona as of the 2010 census.

Also indicated in the CER 2009 Economic Outlook publication, the Arizona DEC estimates the Sierra Vista Area population is approximately 75,000, which includes outlying areas of the Sierra Vista Southeast Census Designated Place, Huachuca City, Tombstone, Whetstone, Hereford and unincorporated surrounding areas. The population of the Sierra Vista Area is estimated to reach nearly 100,000 by 2028.

According to the 2000 Census figures, the Sierra Vista population consists of 14,196 households, and 9,993 families residing in the city. The population density was 246.1 people per square mile (95.0/km²). There were 15,685 housing units at an average density of 102.2 per square mile (39.5/km²). The racial makeup of the city was 73.34% White, 10.89% Black or African American, 3.57% Asian, 0.83% Native American and 0.46% Pacific Islander. 6.05% of the population is from other races, and 4.86% from two or more races. 15.8% of the population is Hispanic or Latino.

There were 14,196 households out of which 34.9% had children under the age of 18 living with them, 56.5% were married couples living together, 25.1% of all households were made up of individuals and 7.7% had someone living alone who was 65 years of age or older. The average household size was 2.48 and the average family size was 2.96.

In the city, the age distribution of the population shows 25.8% under the age of 18, 13.0% from 18 to 24, 29.2% from 25 to 44, 19.9% from 45 to 64, and 12.1% who were 65 years of age or older. The median age was 32 years. For every 100 females, there were 100.7 males. For every 100 females age 18 and over, there were 100.7 males.

The median income for a household in the city was $38,427, and the median income for a family was $44,077. Males had a median income of $30,053 versus $23,805 for females. The per capita income for the city was $18,436. About 8.0% of families and 10.5% of the population were below the poverty line, including 15.8% of those under age 18 and 4.0% of those age 65 or over.

As of the 2000 Census, of the population (37,775) 25 years and older 91.5 percent had at least a high school diploma or equivalent and an estimated 25.7 percent held a bachelor's degree or higher. [34] The CER indicates that there has been an increasing trend for residents to attain a bachelor's degree or higher making the local area competitive in today's technological working environment. The estimated population of resident's educated at a post-secondary level (some college credit or more) in Sierra Vista is estimated to be higher than county, state, and national averages. [33]

Fort Huachuca, a U.S. Army post, an active and historical military installation and a communications and information technology hub, was annexed into the city in 1971. In addition, the city has been actively working to annex Cochise County enclaves within city limits as outlined in the City Council's strategic plan "Our Future Vistas". [35]

Notable residents


The City of Sierra Vista is a council-manager municipality. The city council sets public policy while a professional city manager implements policy and oversees the day-to-day operation of the city.


Sierra Vista is the commercial center for Cochise County and parts of northern Mexico. Retailers such as Lowe's, Home Depot, Walmart, Target, Dillard's, and Marshalls are located in the community, along with three major supermarkets and dozens of smaller specialty shops. The Mall at Sierra Vista is a 400,000-square-foot (37,000 m2) mall located in Sierra Vista.

Sierra Vista has a substantial employment base due to Fort Huachuca — the community's major employer and primary driving economic force. Because of contracts with the Army, the professional, scientific and technical services sector is unusually large, but nearly half of all jobs in Sierra Vista are in the government sector.

Wick Communications, which publishes several dozen newspapers in some twelve states, is headquartered in Sierra Vista.


Sierra Vista Public Library Sierra Vista Public Library.jpg
Sierra Vista Public Library

The Sierra Vista Unified School District includes one high school, Buena High School, one middle school, and six elementary schools. There are also several charter and private education opportunities. Higher education is available through the University of Arizona South, Cochise Community College, the University of Phoenix, Wayland Baptist University, and Western International University.

There is a 31,000-square-foot (2,900 m2) public library located within the city limits across from city hall. [39]


Pictographs in the Huachuca Mountains Pictographs in the Huachuca Mountains.jpg
Pictographs in the Huachuca Mountains

Sierra Vista has a variety of cultural and family-oriented activities throughout the year. Some of the major events include the Cochise Cowboy Poetry and Music Gathering in February, the Festival of the Southwest in the spring, Independence Day celebration, the Southwest Wings Festival in August for bird watching enthusiasts, and Arizona's longest-running holiday parade in December. During the winter months, the Sierra Vista Symphony Orchestra presents three concerts of classical and popular music, including pre-concert seminars, and puts on special fund raising events. Throughout the year, the Art Discovery Series presents plays, concerts, and musicals, and in the summer, there are regular band concerts at Veterans' Park, as well as many activities at the Sierra Vista Public Library such as a film series, lectures, readings, and other programs for children and adults. Pictographs created by Native Americans can be found in certain areas of the Huachuca Mountains.

The Gray Hawk Nature Center offering nature education programs and housing live reptile and invertebrate exhibits is located nearby on the San Pedro River.


Sierra Vista is served by the Sierra Vista Herald since 1955.

In 2016 a Social Network Based News Agency was started called Sierra Vista News Network or SVNN. The Facebook page and other Networks SVNN operates include political coverage, Live Streamed High School Sports, and on demand Live News Coverage.

Television station KWBA-TV, channel 58, is licensed to Sierra Vista and serves the Tucson/Sierra Vista market. [40] The station has broadcast since 1996 and is an affiliate of The CW network. The station's transmission tower is located in the Santa Rita Mountains between Sierra Vista and Tucson. Other area television stations include KFTU-DT, channel 36, the Spanish-language UniMás affiliate, licensed to Douglas with a broadcast tower in the Mule Mountains near Sierra Vista; and community station K33CG, channel 33, a former TBN affiliate. [ citation needed ]

Radio station KZMK (K-101) serves as a Top 40 hits FM radio station covering Sierra Vista and most of Cochise County. The station provides live broadcasts for significant events occurring in and around the city. [41] Sister radio station KTAN (1420 AM) broadcasts a News Talk Information format. Both stations are owned by CCR-Sierra Vista IV, LLC., which also owns nearby Bisbee, Arizona radio station KWCD (92.3 FM), which broadcasts a Country music format.

Radio station KWRB (formerly "The Spark") serves as a Christian FM radio station covering Bisbee and most of Cochise County, on the 90.9MHz frequency. They also have an alternative station that serves Willcox, which repeats the station using the callsign K274CB, on 102.7MHz frequency. Both radio stations are owned by WORLD RADIO NETWORK, INC..

Sports teams and events

The Cochise County Cavaliers have combined with the Bisbee Ironmen, both former members of the Arizona Football League (AzFL), to form the Cochise County Ironmen. The Ironmen began their first season of play in 2011. [42]


Canyon Vista Medical Center (CVMC) and the Raymond W. Bliss Army Health Center (located on nearby Fort Huachuca) serve the community's health care needs. Medical personnel of all major specialties are available in the area. Canyon Vista Medical Center was recently completed adjoining an existing Ambulatory Surgery and Imaging Center on SR 90. A management agreement for long term operations of the Hospital was signed with RegionalCare Hospital Partners. The US Department of Veterans Affairs opened a clinic in Sierra Vista to better serve the area's large retired military population. [43]

Regional health concerns

Residents and health professionals became concerned after observing an elevated number of leukemia and related childhood cancer cases being reported in Sierra Vista since 1995. In 2001, with seven reported cases since 1995, the Arizona Department of Health Services (ADHS) determined the number of cases was statistically elevated over the expected norm. In response, the ADHS launched an environmental review of air, drinking water and soil in the Sierra Vista area to determine if environmental exposure had placed residents at greater risk of childhood leukemia or other cancers. By October 2002, the ADHS in conjunction with the Arizona Cancer Registry, determined that, "No common environmental exposure from drinking water, ambient air or waste sites were identified that might have placed residents of the Sierra Vista area at greater risk of developing leukemia." No further action was recommended at that time. [44]

In 2003, three more cases of leukemia were reported. The Centers for Disease Control (CDC) was hesitant to investigate in depth, initially leaving the matter to state health departments, but became involved after the ADHS requested their assistance in the spring of 2003. The CDC concluded two formal studies, in 2004 and 2006, with mixed results. They did not discover any environmental causes for the increased incidence of leukemia, but they did note that they only tested four children with leukemia. They cautioned that with such a small number of study participants, "any attempt to measure associations between environmental exposure and disease would be inherently suspect and not statistically appropriate." Biological samples were tested for 128 chemicals, with results showing average or below average levels for all chemicals except tungsten, styrene and PCB-52, which were above average. [45] [46] [47]

There were no more reported cases in the several years following the CDC reports, bringing the occurrence statistics back in line with national averages. However, with a total of thirteen children diagnosed and another five potentially linked cases being investigated since 1995, some people still have concerns. [48] [49] [50] [51]


Sierra Vista is supported by a public mass transit system called Vista Transit, operated by the city. [52] Huachuca City Transit operates between Huachuca City and Sierra Vista. [53] Cochise Connection runs between Douglas, Bisbee, and Sierra Vista. [54] Greyhound Lines offers service from Sierra Vista to Tucson and Phoenix.

There are two highways (SR 90 and SR 92) connecting Sierra Vista with neighboring communities. The city is also served by the Sierra Vista Municipal Airport (FHU) which is jointly operated by the U.S. Army as Libby Army Airfield. Currently there are no commercial flights arriving to or departing from FHU.

Major highways

Sister cities

Sierra Vista established its Sister Cities program in 1989 with Resolution 2282 in order to promote a relationship with Cananea. Sierra Vista was later twinned with Radebeul on May 22, 1998 by Resolution 3956. Sierra Vista and Radebeul currently have a foreign exchange program with each other. [55]

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North American area code 520 is a state of Arizona telephone area code serving Tucson and most of the southeastern part of the state.

San Pedro River (Arizona) river in the United States of America

The San Pedro River is a northward-flowing stream originating about 10 miles (16 km) south of the international border south of Sierra Vista, Arizona, in Cananea Municipality, Sonora, Mexico. The river starts at the confluence of other streams just east of Sauceda, Cananea. Within Arizona, the river flows 140 miles (230 km) north through Cochise County, Pima County, Graham County, and Pinal County to its confluence with the Gila River, at Winkelman, Arizona. It is the last major, undammed desert river in the American Southwest, and it is of major ecological importance as it hosts two-thirds of the avian diversity in the United States, including 100 species of breeding birds and almost 300 species of migrating birds.

Hereford, Arizona Populated place in Arizona, United States

Hereford is a populated place in Cochise County along the San Pedro Riparian National Conservation Area in the southern part of the U.S. state of Arizona. It is southeast of Sierra Vista and is a part of the Sierra Vista-Douglas micropolitan area. The elevation is 4,193 feet at the location of the original townsite at the far eastern end of the unincorporated area; the residential area runs for another 8 miles west from this location, blending into the unincorporated area of Nicksville at an elevation of approximately 4800'. Hereford Station Post Office is located at the far western end of Nicksville, at the foot of the Huachuca Mountains.

KTAN is a radio station broadcasting a classic rock format. Licensed to Sierra Vista, Arizona, United States, the station serves the Southwestern Cochise County area. The station is currently owned by CCR-Sierra Vista IV, LLC and features programing from CBS Radio and Premiere Radio Networks.

Cochise Airlines was a commuter airline which was founded in 1971 in Tucson, Arizona. It operated until the early 1980s. Cochise linked small cities in Arizona with Phoenix, Arizona and Tucson, Arizona and also served southern California and New Mexico at one point.

Huachuca Mountains

The Huachuca Mountain range is part of the Sierra Vista Ranger District of the Coronado National Forest. The Huachuca Mountains are located in Cochise County, Arizona approximately 70 miles (110 km) south-southeast of Tucson and southwest of the city of Sierra Vista, Arizona. Included in this area is the highest peak in the Huachucas, Miller Peak, and the region of the Huachucas known as Canelo Hills in eastern Santa Cruz County. The mountains range in elevation from 3,934 feet (1,199 m) at the base to 9,466 feet (2,885 m) at the top of Miller Peak. The second highest peak in this range is Carr Peak, elevation 9,200 feet (2,804 m). The Huachuca Mountain area is owned principally by the USDA Forest Service (41%), the U.S. Army (20%), and private land (32%). Sierra Vista is the main population center.

Carr Peak mountain in United States of America

Carr Peak is the third-highest mountain in Cochise County, Arizona and is the second-highest mountain in the Huachuca Mountains. It rises about 10 miles (16 km) south of Sierra Vista, Arizona. The summit is in the Miller Peak Wilderness on the Coronado National Forest and about 4 miles (6 km) south of the Nature Conservancy's Ramsey Canyon Preserve. The area is well known among birders because of the variety of hummingbird species seen in the area as well as the dozens of southwestern specialties such as Apache pine, Chihuahua pine, ridge-nosed rattlesnake, lesser long-nosed bat and elegant trogon.

Little Rincon Mountains

The Little Rincon Mountains are a small range of mountains, lying to the east of the Rincon Mountains, at Tucson, of eastern Pima County, Arizona. The range is located in northwest Cochise County and is part of the western border of the San Pedro River and Valley, the major valley and river of western Cochise County. The river is northward flowing to meet the Gila River; its headwaters are south of the US-Mexico border in northern Sonora. A small part of the Little Rincon range's southwest lies in Pima County.

Buena High School is a high school in Sierra Vista, Arizona. It is the only high school in the Sierra Vista Unified School District.

Arizona Sun Corridor Megaregion of the U.S. in Arizona, USA

The Arizona Sun Corridor, shortened Sun Corridor, is a megaregion, or megapolitan area, in the southern area of the U.S. state of Arizona. The Sun Corridor is comparable to Indiana in both size and population. It is one of the fastest growing conurbations in the country and is speculated to double its population by 2040. The largest metropolitan areas are the Phoenix metropolitan area - Valley of the Sun - and the Tucson metropolitan area. The regions' populace is nestled in the valley of a desert environment. Similar to Southern California, the urban area extends into Mexico, reaching the communities of Nogales and Agua Prieta.


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