Antelope Canyon | |
---|---|
Tsé bighánílíní(in Navajo) | |
Floor elevation | 3,704 ft (1,129 m) [1] |
Length | Upper Antelope Canyon: about 660 feet (200 m) [2] Lower Antelope Canyon: about 1,335 feet (407 m) [2] |
Depth | about 120 feet (37 m) [3] |
Geology | |
Type | Sandstone slot canyon [3] |
Age | 8-60 million years |
Geography | |
Population centers | Page |
Coordinates | 36°57′10″N111°26′29″W / 36.9527664°N 111.4412683°W [1] |
Topo map | USGS Page |
Navajo Upper Antelope Canyon is a slot canyon in the American Southwest, on Navajo land east of Lechee, Arizona. It includes six separate, scenic slot canyon sections on the Navajo Reservation, referred to as Upper Antelope Canyon (or The Crack), Rattle Snake Canyon, Owl Canyon, Mountain Sheep Canyon, Canyon X [4] and Lower Antelope Canyon (or The Corkscrew). [2] It is the primary attraction of Lake Powell Navajo Tribal Park, along with a hiking trail to Rainbow Bridge National Monument.
The Navajo name for Upper Antelope Canyon is Tsé bighánílíní, which means 'the place where water runs through the (Slot Canyon) rocks'. Lower Antelope Canyon is Hazdistazí (called "Hasdestwazi" by the Navajo Parks and Recreation Department), or 'spiral rock arches'. Both are in the LeChee Chapter of the Navajo Nation. [5] They are accessible by Navajo guided tour only. [6]
Antelope Canyon was formed by the erosion of Navajo Sandstone [2] due to flash flooding and other sub-aerial processes. Rainwater, especially during monsoon season, runs into the extensive basin above the slot canyon sections, picking up speed and sand as it rushes into the narrow passageways. [7] Over time the passageways eroded away, deepening the corridors and smoothing hard edges to form characteristic "flowing" shapes. [3]
Antelope Canyon is a popular location for sightseers, and a source of tourism business for the Navajo Nation. It has been accessible by tour since 1983 by Pearl Begay Family and 1997, when the Navajo Tribe made it a Navajo Tribal Park. Besides the Upper and Lower areas, there are other slots in the canyon that can be visited, such as the Rattle Snake Canyon, Owl Canyon, and Mountain Sheep Canyon which is also part of the same drainage as Antelope Canyon.[ citation needed ]
Photography within the canyons is difficult due to the wide exposure range (often 10 EV or more) made by light reflecting off the canyon walls. [8]
Upper Antelope Canyon is called Tsé bighánílíní, 'the place where water runs through rocks' by the Navajo People in that specific area. It is the most frequently visited by tourists because its entrance and entire length are at ground level, requiring no climbing; and because beams of direct sunlight radiating down from openings at the top of the canyon are much more common all year round that make the inside canyon very colorful. Beams occur most often in the summer, as they require the sun to be high in the sky at midday. Light beams start to peek into the canyon on March 20 and disappear by October 20.
Lower Antelope Canyon, called Hazdistazí, or 'spiral rock arches' by the Navajo, is located several miles from Upper Antelope Canyon. Prior to the installation of metal stairways, visiting the canyon required climbing pre-installed ladders in certain areas.
Even following the installation of stairways, it is a more difficult hike than Upper Antelope. It is longer and narrower in places, and even footing is not available in all areas. Five flights of stairs of varying widths are currently available to aid in descent and ascent. At the end, the climb out requires flights of stairs. Additionally, sand continually falls from the crack above and can make the stairs slippery. [9]
Despite these limitations, Lower Antelope Canyon draws a considerable number of photographers, though casual sightseers are much less common than in the Upper Canyon. Photography-only tours are available around midday when light is at its peak. Photographers cannot bring a tripod.
The lower canyon is in the shape of a "V" and shallower than the Upper Antelope. Lighting is better in the early hours and late mornings.
Antelope Canyon is visited exclusively through guided tours, in part because rains during monsoon season can quickly flood it. Rain does not have to fall on or near the Antelope Canyon slots for flash floods to whip through; rain falling dozens of miles away can funnel into them with little notice. [10]
On August 12, 1997, eleven tourists, including seven from France, one from the United Kingdom, one from Sweden and two from the United States, were killed in Lower Antelope Canyon by a flash flood. [11] [12] Very little rain fell at the site that day, but an earlier thunderstorm dumped a large amount of water into the canyon basin 7 miles (11 km) upstream. The lone survivor was tour guide Francisco "Pancho" Quintana, who had prior swift-water training. At the time, the ladder system consisted of amateur-built wood ladders that were swept away by the flood. Today, ladder systems have been bolted in place, and deployable cargo nets are installed at the top of the canyon. A NOAA Weather Radio from the National Weather Service and an alarm horn are on hand at the fee booth. [13]
Despite improved warning and safety systems, the risks of injury from flash floods still exists. On July 30, 2010, several tourists were stranded on a ledge when two flash floods occurred at Upper Antelope Canyon. [14] Some of them were rescued and some had to wait for the flood waters to recede. [15] There were reports that a woman and her nine-year-old son were injured as they were washed away downstream, but no fatalities were reported. [16]
Page is a city in Coconino County, Arizona, United States, near the Glen Canyon Dam and Lake Powell. As of the 2010 census, the population of the city was 7,247.
The Colorado River is one of the principal rivers in the Southwestern United States and in northern Mexico. The 1,450-mile-long (2,330 km) river, the 5th longest in the United States, drains an expansive, arid watershed that encompasses parts of seven U.S. states and two Mexican states. The name Colorado derives from the Spanish language for "colored reddish" due to its heavy silt load. Starting in the central Rocky Mountains of Colorado, it flows generally southwest across the Colorado Plateau and through the Grand Canyon before reaching Lake Mead on the Arizona–Nevada border, where it turns south toward the international border. After entering Mexico, the Colorado approaches the mostly dry Colorado River Delta at the tip of the Gulf of California between Baja California and Sonora.
Rainbow Bridge' is a natural arch in southern Utah, United States. With a span of 275 feet (84 m), as reported in 1974 by the Bureau of Reclamation, and height of 290 feet (88 m), it is one of the largest natural arches in the world. At the top it is 42 feet (13 m) thick and 33 feet (10 m) wide. The bridge, which is of cultural importance to a number of area Native American tribes, has been designated a Traditional Cultural Property by the National Park Service. Rainbow Bridge National Monument was protected in 1910, and it is administered by Glen Canyon National Recreation Area.
Glen Canyon Dam is a concrete arch-gravity dam in the southwestern United States, located on the Colorado River in northern Arizona, near the city of Page. The 710-foot-high (220 m) dam was built by the Bureau of Reclamation (USBR) from 1956 to 1966 and forms Lake Powell, one of the largest man-made reservoirs in the U.S. with a capacity of more than 25 million acre-feet (31 km3). The dam is named for Glen Canyon, a series of deep sandstone gorges now flooded by the reservoir; Lake Powell is named for John Wesley Powell, who in 1869 led the first expedition to traverse the Colorado River's Grand Canyon by boat.
Lake Powell is a reservoir on the Colorado River in Utah and Arizona, United States. It is a major vacation destination visited by approximately two million people every year. It holds 24,322,000 acre-feet (3.0001×1010 m3) of water when full, second in the United States to only Lake Mead - though Lake Mead has fallen below Lake Powell in size several times during the 21st century in terms of volume of water, depth and surface area.
The Little Colorado River is a tributary of the Colorado River in the U.S. state of Arizona, providing the principal drainage from the Painted Desert region. Together with its major tributary, the Puerco River, it drains an area of about 26,500 square miles (69,000 km2) in eastern Arizona and western New Mexico. Although it stretches almost 340 miles (550 km), only the headwaters and the lowermost reaches flow year-round. Between St. Johns and Cameron, most of the river is a wide, braided wash, only containing water after heavy snowmelt or flash flooding.
The Four Corners is a region of the Southwestern United States consisting of the southwestern corner of Colorado, southeastern corner of Utah, northeastern corner of Arizona, and northwestern corner of New Mexico. Most of the Four Corners region belongs to semi-autonomous Native American nations, the largest of which is the Navajo Nation, followed by Hopi, Ute, and Zuni tribal reserves and nations. The Four Corners region is part of a larger region known as the Colorado Plateau and is mostly rural, rugged, and arid.
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The San Juan River is a major tributary of the Colorado River in the Southwestern United States, providing the chief drainage for the Four Corners region of Colorado, New Mexico, Utah, and Arizona. Originating as snowmelt in the San Juan Mountains of Colorado, it flows 383 miles (616 km) through the deserts of northern New Mexico and southeastern Utah to join the Colorado River at Glen Canyon.
Lees Ferry is a site on the Colorado River in Coconino County, Arizona in the United States, about 7.5 miles (12.1 km) southwest of Page and 9 miles (14 km) south of the Utah–Arizona state line.
Glen Canyon National Recreation Area is a national recreation area and conservation unit of the United States National Park Service that encompasses the area around Lake Powell and lower Cataract Canyon in Utah and Arizona, covering 1,254,429 acres (5,076.49 km2) of mostly rugged high desert terrain. The recreation area is named for Glen Canyon, which was flooded by the Glen Canyon Dam, completed in 1966, and is now mostly submerged beneath the waters of Lake Powell.
Canyon de Chelly National Monument was established on April 1, 1931, as a unit of the National Park Service. Located in northeastern Arizona, it is within the boundaries of the Navajo Nation and lies in the Four Corners region. Reflecting one of the longest continuously inhabited landscapes of North America, it preserves ruins of the indigenous tribes that lived in the area, from the Ancestral Puebloans to the Navajo. The monument covers 83,840 acres and encompasses the floors and rims of the three major canyons: de Chelly, del Muerto, and Monument. These canyons were cut by streams with headwaters in the Chuska Mountains just to the east of the monument. None of the land is federally owned. Canyon de Chelly is one of the most visited national monuments in the United States.
Northern Arizona is an unofficial, colloquially defined region of the U.S. state of Arizona. Generally consisting of Apache, Coconino, Mohave, Navajo, and Yavapai counties, the region is geographically dominated by the Colorado Plateau, the southern border of which in Arizona is called the Mogollon Rim.
A slot canyon is a long, narrow channel or drainageway with sheer rock walls that are typically eroded into either sandstone or other sedimentary rock. A slot canyon has depth-to-width ratios that typically exceed 10:1 over most of its length and can approach 100:1. The term is especially used in the semiarid southwestern United States and particularly the Colorado Plateau. Slot canyons are subject to flash flooding and commonly contain unique ecological communities that are distinct from the adjacent, drier uplands. Some slot canyons can measure less than 1 metre (3 ft) across at the top but drop more than 30 metres (100 ft) to the floor of the canyon.
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Coyote Gulch is a tributary of the Escalante River, located in Garfield and Kane Counties in southern Utah, in the western United States. Over 25 mi (40 km) long, Coyote Gulch exhibits many of the geologic features found in the Canyons of the Escalante, including high vertical canyon walls, narrow slot canyons, domes, arches, and natural bridges. The upper sections of Coyote Gulch are located within the Grand Staircase–Escalante National Monument, while its lower sections are located in the Glen Canyon National Recreation Area.
The Colorado River Storage Project is a United States Bureau of Reclamation project designed to oversee the development of the upper basin of the Colorado River. The project provides hydroelectric power, flood control and water storage for participating states along the upper portion of the Colorado River and its major tributaries.
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