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The known human history of the Grand Canyon area stretches back 10,500 years, when the first evidence of human presence in the area is found. Native Americans have inhabited the Grand Canyon and the area now covered by Grand Canyon National Park for at least the last 4,000 of those years.
The Grand Canyon [a] is a steep-sided canyon carved by the Colorado River in Arizona, United States.The Grand Canyon is 277 miles (446 km) long, up to 18 miles (29 km) wide and attains a depth of over a mile (6,093 feet or 1,857 meters).
Georgie White Clark (1911–1992) was a river-running guide in the Grand Canyon.She was the first woman to run the Grand Canyon as a commercial enterprise, and she introduced several innovations and adjustments to the way that guides ran the Colorado River.
Location: Coconino and Mohave counties, Arizona, United States: Nearest city: Fredonia, Arizona (North Rim) Tusayan, Arizona (South Rim): Coordinates: 2]: Area: 1,217,262 acres (4,926.08 km 2) [3]: Established: January 11, 1908 () as a national monument February 26, 1919 () as a national park: Visitors: 4,733,705 (in 2023) [4]: Governing body: National Park Service: Website: nps.gov /grca ...
In June 1938 Collom undertook a field trip in the Grand Canyon National Park. In October of that year she traded letters with E. McKee, the cofounder of the Grand Canyon National History Association (the predecessor to the Grand Canyon Association). He offered her a grant to enable her to collect specimens in the Grand Canyon area.
In 1983, Grua, along with river guides Rudi Petschek and Steve Reynolds, set a record for speed rowing down the 277-mile length of the Colorado River through the Grand Canyon, with a time of 36 hours, 38 minutes and 29 seconds, breaking the previous record of just under 48 hours set in 1980 by Grua, Petschek, and Wally Rist, which in turn broke the record of 52 hours established in 1951 by the ...
Grand Canyon along the Bright Angel and North Kaibab Trails from the South Rim to Roaring Springs and the South Kaibab Trail to Tipoff 36°06′36″N 112°05′34″W / 36.11°N 112.092778°W / 36.11; -112.092778 ( Trans-Canyon Telephone Line, Grand Canyon National
When Fletcher conducted the trip in 1963, the National Park did not encompass the entire length of the canyon, the park was later expanded to include the entire Canyon. The first person to walk the entire length of the Grand Canyon was Kenton Grua in 1977. He was inspired by Fletcher's book but set out to "do it right" by walking from end to ...