Location | |
---|---|
Lincoln County, Nevada [1] | |
Coordinates | 37°20′46″N115°46′09″W / 37.3462°N 115.7692°W Coordinates: 37°20′46″N115°46′09″W / 37.3462°N 115.7692°W |
Production | |
Products | Silver [2] |
Type | Open-pit & underground [3] |
Greatest depth | 210 feet (64 m) [4] |
History | |
Opened | 1866[5] |
Active | 1872 [6] –1954 [7] |
Closed | 2015[8] |
Owner | |
Company | United States Government [8] |
Year of acquisition | 2015 [8] |
Groom Mine, located in Lincoln County, Nevada, first opened in the 1870s. [7] Most mining in the area, mostly of silver chloride ores, had finished by 1874. [6] Groom Mine continued to operate, finally ceasing operations in 1954. [7] By 1956, official recordings of products of the Groom Mining District, which includes Groom Mine, shows that lead was the bulk of minerals harvested, which also included 145,000 troy ounces (4,500 kg) of silver and about 45 troy ounces (1.4 kg) of gold. [9] During World War II, Groom Mine became surrounded by military activity, which continued into the 21st century. [10] In the 1950s, the mine was exposed to fallout from nuclear testing that was being carried out at the Nevada Test Site. [10] During the late 20th century, military activities, including the destruction of a mill and the restriction of access to the mine, continued to affect work there. [11] The United States Government seized the mine under eminent domain from its previous owners in 2015. [8] Just compensation was set at $1.204 million by the United States District Court, District of Nevada (Las Vegas), Judge Miranda Du presiding.
The rocks in the range date back to the Paleozoic era; the site is also covered by Tertiary rocks on its east and north sides. [12] Prior to European exploration, the region was inhabited by Southern Paiute Native Americans. [13] Following the discovery of minerals in the Comstock Lode in 1859, prospecting of other areas in Nevada began. [14] [15] Mining in the area began in the late 1860s, after minerals were discovered in the Groom Range in 1864. [6] A mining district to organize claims, called Groom District, was formed in 1869. [14] In 1871, the area was documented in the Wheeler Survey. [13]
Human habitation at the Groom Mine site may have begun as early as 1866. [5] A patent for the Groom Mine was issued in 1872 and in 1885, the Sheahan family acquired the property. [6] [16] The mine was three days' travel from Indian Springs and 5,250 feet (1,600 m) above sea level, making it very isolated. [13] According to Nevada Bureau of Mines and Geology in 1998, the property claim, which is commonly referred to as Groom, is officially named "Conception". [17]
In addition to the Conception claim, other claims in Groom Distract were made and held by the Sheahan family. [13] From 1915 until 1917, the mine was leased to Tom McCormick, who worked the mine. [13] In September 1917, a miner from Austria-Hungary who was employed by Groom Mining Company died at the mine. [18] In the mid-to-late 1910s the mine produced silver worth about $250,000. [19] The shipping of mined products became difficult with the closing of the Las Vegas and Tonopah Railroad at the end of that decade, [20] which caused the mine to become temporarily idle. [21] By 1922, the mine had two shafts, the longest being 200 feet (61 m) deep. [22]
In 1942, construction of a mill that used a gravity and flotation method began; [13] a source later referred to this mill as a concentration mill. [11] By 1951, four people were living at the mine and the concentration mill had been completed. [11] Ore from Groom Mine, from which lead and silver were extracted, was found to contain cerussite and galena. [1] Beginning in 1950, roads approaching the mine from the west were closed due to military activities, leading to the Sheahan family and Lincoln County to build a road from the east; [10] this is referred to as Groom Road in a 1986 report. [23] During the 1950s, mining operations paused due to nearby nuclear tests. [24] In 1954, production from the mine ended due to the destruction of a mill at the mine. [25]
Until 1956, the mine product totaled almost a million dollars in several minerals, including copper, silver, and gold; [6] In 1977, the United States Bureau of Mines valued the output of Groom mine products at $3.75 million. [4] It was the most productive mine in the Groom Mining District [6] and had been worked on by three generations of the Sheahan family. [13] Based on panning samples near Groom Mine, the area may also contain deposits of antimony, barium, lead, mercury, and zinc. [26] By 1959, the Sheahan family moved away from the mine but visited their property regularly. [10] In 1984, the Sheahan family, who still owned the Groom Mine, also had the legal rights to most of the other 22 patented mining claims nearby. [27] According to the Nevada Bureau of Mines and Geology, it was estimated in 1963 that there is 30,000 tonnes (30,000,000 kg) of material that can be mined at Groom Mine. [28] A 1990 Bureau of Land Management report stated that due to restricted access to the mine, it would lead to "potential loss of income through inability to expand or further develop the claims". [29] Until late 2015, the Sheahan family periodically blasted for minerals at the mine; [7] by this time the family had owned the mine for 130 years. [30]
In 1941, Groom Mine was visited by individuals who stayed at the mine with the Sheahan family while surveying the area for a gunnery and bombing range to be used during World War II. [10] The outhouse and bunkhouse at the mine were accidentally strafed during the war by aircraft using the Las Vegas Bombing and Gunnery Range. [13] Beginning in the 1950s, Groom Mine began to be impacted by nuclear tests at the Nevada Test Site; [10] Groom Mine was 38 miles (61 km) away. [31] In 1951, the Atomic Energy Commission informed the Sheahan family of the planned detonations and set up instrumentation at the mine. [24] [32] The instrumentation was monitored by an employee of the United States Public Health Service, who lived at the mine along with the Sheahan family. [33] The first mention of a nuclear tests impacting operations at Groom Mine was the Operation Tumbler–Snapper Easy Test, which led to the mine being evacuated due to its proximity to the detonation. [34] Following the detonation, measurements of radiation at the mine reached 0.19 roentgen per hour. [35] It caused some structural damage, breaking the front door of the Sheahan's home. [24] Further away, fallout impacted nearby Tempiute. [34] Returning to the mine had to be done using a different route; the normal route was too radioactive to travel on. [36] The following Fox test in late May 1952 led to fallout falling on the mine; [34] the highest-recorded radiation was 0.32 roentgen per hour. [37] It was, however, the view of the Atomic Energy Commission that the nuclear detonations "had not subjected Groom Mine personnel to any real danger from fallout". [38]
By May 1952, most of the Sheahan family had evacuated the mine and moved to Las Vegas. [24] In July 1952, Martha, a member of the family who had been exposed to fallout, was diagnosed with cancer. [13] Following Operation Upshot–Knothole, the Sheahan family attempted to sell their claim to the Atomic Energy Commission but it refused, fearing it would set a precedent; instead the family received $1,100 for losses and damages resulting from the Operation Tumbler-Snapper tests. [39] Following the adverse environmental impact observed by the two remaining family members at the mine caused by Upshot-Knothole Harry, the Atomic Energy Commission said the blasts were designed to produce winds from the testing area towards Groom rather than towards Las Vegas. [24]
During 1953, the property was strafed and during the summer a bomb destroyed the mine's mill; [40] no specific claim was made by the Sheahan family against the United States Air Force (USAF) for the event. [41] In 1954, the mining buildings were strafed by aircraft using Nellis Air Force Gunnery and Bombing Range. [24] In 1956, the Sheahan family and others filed lawsuits against the Atomic Energy Commission because of damage caused by nuclear testing. [42] In 1959, the lawsuit was withdrawn when the Sheahan family ran out of funds to continue legal action. [43] The property on which the mine is located has a view of an airfield known as Area 51. [8] [10] In the 1970s and 1980s, armed personnel arrived when the Sheahan family came onto their property, sometimes locking them into their own buildings. [10]
In 1984, the USAF seized lands around Groom Mine, [27] restricting access to the mine for the Sheahan family. [40] [44] Some of the Sheahan family were issued with security clearances after 1984. [24] In 1986, the 1953 mill-destruction event was entered into the record of a subcommittee of the United States House Committee on Natural Resources. [45] In 1987, the position of the United States Air Force was, "we don't want to go in and tell them to get the hell out". [46] In 1989, although it was within the Nevada Test and Training Range, the United States Air Force allowed claimants access to their claims within the Groom Mining District, including Groom Mine. [47]
Beginning in late 2014, the United States Department of Defense attempted to purchase the property from the Sheahan family, originally offering $1.5 million. [7] By August 2015, the USAF had raised the offer to $5.2 million; the family continued rejecting the offers. [10] [48] In August 2015, a government press release described the mine as a "safety and security risk", even though the Sheahan family had not disclosed any activities of the Groom Lake facility. [49] In September 2015, the commander of the Nevada Test and Training Range stated that the existence of the mine within the range led to "tremendous expense" due to "canceling missions when they came out"; [43] secret operations at the base could not proceed when civilians were present on the Sheahan's property within easy view of the installation. On 16 September 2015, the property was condemned under eminent domain and given to the United States Government by a court order signed by federal Judge Miranda Du. [8]
It was not determined at the time of transfer of ownership how much the Sheahan family would receive in just compensation for the government acquisition of Groom Mine; the USAF in 2015 estimated the land to be worth $1.2 million. [50] In November 2015, the Sheahan family suggested the mine be protected as a national historic site; [51] this coincides with a suggestion in a 1980s USAF report that recommended nominating Groom Mining District to be listed on the National Register of Historic Places. [13] By 2016, the USAF only valued Groom Mine at under a third of a million dollars; [52] the Sheahan family's legal counsel valued the property as being worth over $100 million. [53] In 2017, the family claimed they were forced to leave millions of dollars worth of property at Groom Mine following the seizure; [54] part of the property which was abandoned includes an antique anvil that was missing when personal property was reviewed in November 2015. [55] In August 2019, it was reported that the family was hoping to have a jury trial to determine the value of the property. [56] The trial was ultimately conducted in front of a three-member Land Commission. Prior to trial, the landowners accepted the Government's valuation of the mineral interests at $104,000 and went to trial only to contest the value of the surface rights. [57] The landowner's experts valued those rights at $50 million based on the property being developed into a commercial tourism enterprise offering views of Area 51. The Government's experts valued it at $254,000 based on continued use as a rural recreation retreat. [58] On May 29, 2020 the Land Commission ruled that just compensation for the taking of the surface rights is $1,100,000 based on the property's continued use for rural recreation, with a premium over the Government's valuation to account for its view of Area 51 and its historic use as a family owned mining operation. [59]
Area 51 is the common name of a highly classified United States Air Force (USAF) facility within the Nevada Test and Training Range. A remote detachment administered by Edwards Air Force Base, the facility is officially called Homey Airport (XTA/KXTA) or Groom Lake. Details of its operations are not made public, but the USAF says that it is an open training range, and it is commonly thought to support the development and testing of experimental aircraft and weapons systems. The USAF and CIA acquired the site in 1955, primarily for flight testing the Lockheed U-2 aircraft.
Nevada is a state in the Western region of the United States. It is bordered by Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. Nevada is the 7th-most extensive, the 32nd-most populous, and the 9th-least densely populated of the U.S. states. Nearly three-quarters of Nevada's people live in Clark County, which contains the Las Vegas–Paradise metropolitan area, including three of the state's four largest incorporated cities. Nevada's capital is Carson City while the largest city is Las Vegas.
Las Vegas, often known simply as Vegas, is the 26th-most populous city in the United States, the most populous city in the state of Nevada, and the county seat of Clark County. The city anchors the Las Vegas Valley metropolitan area and is the largest city within the greater Mojave Desert. Las Vegas is an internationally renowned major resort city, known primarily for its gambling, shopping, fine dining, entertainment, and nightlife. The Las Vegas Valley as a whole serves as the leading financial, commercial, and cultural center for Nevada.
Clark County is located in the U.S. state of Nevada. As of the 2020 census, the population was 2,265,461. Most of the county population resides in the Las Vegas Census County Divisions, which hold 1,771,945 people as of the 2010 Census, across 476 square miles (1,233 km2). It is by far the most populous county in Nevada, and the 11th most populous county in the United States. It covers 7% of the state's land area but holds 74% of the state's population, making Nevada one of the most centralized states in the United States.
Groom Lake is a dry lake, also described as a salt flat, in Nevada. It is used for runways of the Nellis Bombing Range Test Site airport (KXTA). Part of the Area 51 USAF installation, it lies at an elevation of 4,409 ft (1,344 m) and is approximately 3.7 miles (6.0 km) from north to south and 3 miles (4.8 km) from east to west at its widest point, and is approximately 11.3 miles in circumference. Located within the namesake Groom Lake Valley portion of the Tonopah Basin, the lake is 25 mi (40 km) south of Rachel, Nevada.
Searchlight is an unincorporated town and census-designated place (CDP) in Clark County, Nevada, United States, at the topographic saddle between two mountain ranges. As of the 2010 census it had a population of 539.
Beatty is an unincorporated town along the Amargosa River in Nye County in the U.S. state of Nevada. U.S. Route 95 runs through the town, which lies between Tonopah, about 90 miles (140 km) to the north and Las Vegas, about 120 miles (190 km) to the southeast. State Route 374 connects Beatty to Death Valley National Park, about 8 miles (13 km) to the west.
Ely is the largest city and county seat of White Pine County, Nevada, United States. Ely was founded as a stagecoach station along the Pony Express and Central Overland Route. In 1906 copper was discovered. Ely's mining boom came later than the other towns along US 50. The railroads connecting the transcontinental railroad to the mines in Austin, Nevada and Eureka, Nevada have long been removed, but the railroad to Ely is preserved as a heritage railway by the Nevada Northern Railway and known as the Ghost Train of Old Ely. As of the 2020 census, the population was 3,924.
Nellis Air Force Base is a United States Air Force installation in southern Nevada. Nellis hosts air combat exercises such as Exercise Red Flag and close air support exercises such as Green Flag-West flown in "Military Operations Area (MOA) airspace", associated with the nearby Nevada Test and Training Range (NTTR). The base also has the Combined Air and Space Operations Center-Nellis.
The Tonopah Test Range is a highly classified, restricted military installation of the United States Department of Defense, and United States Department of Energy located about 30 miles (48 km) southeast of Tonopah, Nevada. It is part of the northern fringe of the Nellis Range, measuring 625 sq mi (1,620 km2). Tonopah Test Range is located about 70 miles (110 km) northwest of Groom Lake, the home of the Area 51 facility.
Rhyolite is a ghost town in Nye County, in the U.S. state of Nevada. It is in the Bullfrog Hills, about 120 miles (190 km) northwest of Las Vegas, near the eastern boundary of Death Valley National Park. The town began in early 1905 as one of several mining camps that sprang up after a prospecting discovery in the surrounding hills. During an ensuing gold rush, thousands of gold-seekers, developers, miners and service providers flocked to the Bullfrog Mining District. Many settled in Rhyolite, which lay in a sheltered desert basin near the region's biggest producer, the Montgomery Shoshone Mine.
Creech Air Force Base is a United States Air Force (USAF) command and control facility in Clark County, Nevada used "to engage in daily Overseas Contingency Operations …of remotely piloted aircraft systems which fly missions across the globe." In addition to an airport, the military installation has the Unmanned Aerial Vehicle Battlelab, associated aerial warfare ground equipment, and unmanned aerial vehicles of the type used in Afghanistan and Iraq. Creech is the aerial training site for the USAF Thunderbirds and "is one of two emergency divert airfields" for the Nevada Test and Training Range.
State Route 375 is a 98.414-mile (158.382 km) state highway in Nye and Lincoln counties in south-central Nevada, United States. The highway stretches from State Route 318 at Crystal Springs northwest to U.S. Route 6 at Warm Springs. The route travels through mostly unoccupied desert terrain, with much of its alignment paralleling the northern edges of the Nellis Air Force Range. The road originally traversed through what is now the northern reaches of the air force range in the 1930s, when it was previously designated State Route 25A and later part of State Route 25.
Tonopah Test Range Airport, at the Tonopah Test Range is 27 NM southeast of Tonopah, Nevada and 140 mi (230 km) northwest of Las Vegas, Nevada. It is a major airfield with a 12,000 ft × 150 ft runway, instrument approach facilities, and nighttime illumination. The facility boasts over fifty hangars and an extensive support infrastructure.
Frenchman Mountain is a mountain located east of Las Vegas, Nevada. Made up of rocks similar to those found on the bottom of the Grand Canyon, Frenchman Mountain formed when faulting elevated and tilted the rocks followed by erosion, giving it its sharp triangular profile. The mountain provides an example of the Great Unconformity with the tilted Paleozoic Tapeats Sandstone underlain by Paleoproterozoic Vishnu Schist, which is some of the oldest rock on the North American continent, having been created about two billion years ago.
Arden, Nevada was an unincorporated community in Clark County, Nevada. The area is now part of the town of Enterprise. Located about 7 miles (11 km) southwest of Las Vegas, the area is experiencing rapid growth in housing development on land formerly owned by the Bureau of Land Management.
The Nevada Test and Training Range (NTTR) is one of two military training areas at the Nellis Air Force Base Complex in Nevada and used by the United States Air Force Warfare Center at Nellis Air Force Base. The NTTR land area includes a "simulated Integrated Air Defense System", several individual ranges with 1200 targets, and 4 remote communication sites. The current NTTR area and the range's former areas have been used for aerial gunnery and bombing, for nuclear tests, as a proving ground and flight test area, for aircraft control and warning, and for Blue Flag, Green Flag, and Red Flag exercises.
The History of Nevada as a state began when it became the 36th state on October 31, 1864, after telegraphing the Constitution of Nevada to the Congress days before the November 8 presidential election. Statehood was rushed to help ensure three electoral votes for Abraham Lincoln's reelection and add to the Republican congressional majorities.
The Nellis Air Force Base Complex is the southern Nevada military region of federal facilities and lands, e.g., currently and formerly used for military and associated testing and training such as Atomic Energy Commission atmospheric nuclear detonations of the Cold War. The largest land area of the complex is the Nevada Test and Training Range, and numerous Formerly Used Defense Sites remain federal lands of the complex. Most of the facilities are controlled by the United States Air Force and/or the Bureau of Land Management, and many of the controlling units are based at Creech and Nellis Air Force Bases. Initiated by a 1939 military reconnaissance for a bombing range, federal acquisition began in 1940, and McCarren Field became the World War II training area's 1st of 3 Nevada World War II Army Airfields and 10 auxiliary fields. The area's first military unit was initially headquartered in the Las Vegas Federal Building while the WWII Las Vegas Army Airfield buildings were constructed.
A crude smelter may have been on the Groom Mine property in 1866 (Averett 1963:49).