Mount Powell is a 13,364-foot-elevation (4,073 meter) mountain summit located on the crest of the

Sierra Nevada The Sierra Nevada () is a mountain range in the Western United States, between the Central Valley of California and the Great Basin. The vast majority of the range lies in the state of California, although the Carson Range spur lies primarily ...

mountain range in

California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...

, United States. It is situated on the shared boundary of

Kings Canyon National Park Kings Canyon National Park is an American national park in the southern Sierra Nevada, in Fresno and Tulare Counties, California. Originally established in 1890 as General Grant National Park, the park was greatly expanded and renamed to Kings ...

with

John Muir Wilderness The John Muir Wilderness is a wilderness area that extends along the crest of the Sierra Nevada of California for , in the Inyo and Sierra National Forests. Established in 1964 by the Wilderness Act and named for naturalist John Muir, it encompa ...

, and along the common border of

Fresno County Fresno County (), officially the County of Fresno, is a county located in the central portion of the U.S. state of California. As of the 2020 Census, the population was 1,008,654. The county seat is Fresno, the fifth-most populous city in Cali ...

with

Inyo County Inyo County () is a county in the eastern central part of the U.S. state of California, located between the Sierra Nevada and the state of Nevada. In the 2020 census, the population was 19,016. The county seat is Independence. Inyo County is o ...

. It is also west of the community of Big Pine, and west of Mount Thompson, which is the nearest higher neighbor. Mount Powell ranks as the 81st highest peak in California, and the 10th highest of the Evolution Region of the Sierra Nevada. The west summit is unofficially known as "Point John." Two other peaks on the mountain are informally called "Point Wesley" (13,356 ft) in the middle, and "Point Powell" (13,360+ ft) one-half mile to the east.

History

This mountain was named in 1911 by Robert B. Marshall, chief USGS geographer, to commemorate

John Wesley Powell John Wesley Powell (March 24, 1834 – September 23, 1902) was an American geologist, U.S. Army soldier, explorer of the American West, professor at Illinois Wesleyan University, and director of major scientific and cultural institutions. He ...

(1834–1902), geologist, surveyor, map maker, explorer, and director of the

United States Geological Survey The United States Geological Survey (USGS), formerly simply known as the Geological Survey, is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, ...

from 1881 through 1894. The

first ascent In mountaineering, a first ascent (abbreviated to FA in guide books) is the first successful, documented attainment of the top of a mountain or the first to follow a particular climbing route. First mountain ascents are notable because they en ...

of the peak was made August 1, 1925, by Walter L. Huber and James Rennie, two of the foremost mountaineers of the

Sierra Club The Sierra Club is an environmental organization with chapters in all 50 United States, Washington D.C., and Puerto Rico. The club was founded on May 28, 1892, in San Francisco, California, by Scottish-American preservationist John Muir, who be ...

, with Huber serving as club president from 1925 to 1927. In 1983 the

U.S. Board on Geographic Names The United States Board on Geographic Names (BGN) is a federal body operating under the United States Secretary of the Interior. The purpose of the board is to establish and maintain uniform usage of geographic names throughout the federal govern ...

revised the location of the summit from Point Wesley to Point John.

Climbing

Established climbing routes on Mount Powell: * South plateau – – 1925 by Walter L. Huber, James Rennie * Northwest chute – class 3 – June 29, 1931 by

Norman Clyde Norman Clyde (April 8, 1885 – December 23, 1972) was a mountaineer, mountain guide, freelance writer, nature photographer, and self-trained naturalist. He is well known for achieving over 130 first ascents, many in California's Sierra Nevada an ...

* East ridge – class 3 – Norman Clyde * North-northwest face – class 3 – August 27, 1967 by Andy Smatko + 17 othersR. J. Secor, ''The High Sierra Peaks, Passes, Trails'', 2009, Third Edition, Mountaineers Books, , page 290.

Climate

According to the

Köppen climate classification The Köppen climate classification is one of the most widely used climate classification systems. It was first published by German-Russian climatologist Wladimir Köppen (1846–1940) in 1884, with several later modifications by Köppen, notabl ...

system, Mount Powell is located in an

alpine climate Alpine climate is the typical weather (climate) for elevations above the tree line, where trees fail to grow due to cold. This climate is also referred to as a mountain climate or highland climate. Definition There are multiple definitions of ...

zone. Most

weather front A weather front is a boundary separating air masses for which several characteristics differ, such as air density, wind, temperature, and humidity. Disturbed and unstable weather due to these differences often arises along the boundary. For in ...

s originate in the

Pacific Ocean The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the continen ...

, and travel east toward the Sierra Nevada mountains. As fronts approach, they are forced upward by the peaks, causing them to drop their moisture in the form of rain or

snowfall Snow comprises individual ice crystals that grow while suspended in the atmosphere—usually within clouds—and then fall, accumulating on the ground where they undergo further changes. It consists of frozen crystalline water throughout ...

onto the range (

orographic lift Orographic lift occurs when an air mass is forced from a low elevation to a higher elevation as it moves over rising terrain. As the air mass gains altitude it quickly cools down adiabatically, which can raise the relative humidity to 100% and cr ...

). Precipitation

runoff Runoff, run-off or RUNOFF may refer to: * RUNOFF, the first computer text-formatting program * Runoff or run-off, another name for bleed, printing that lies beyond the edges to which a printed sheet is trimmed * Runoff or run-off, a stock market ...

from this mountain drains south into the Middle Fork Kings River, and north into Bishop Creek. Maps from the 1980s show

Powell Glacier Powell Glacier is located in the Sierra Nevada Range in the U.S. state of California. Just to the northeast of Mount Powell (), the glacier is within the John Muir Wilderness of Inyo National Forest at an elevation of . See also *List of glacier ...

drawn on the north aspect of the mountain, however satellite images show that the glacier has since disappeared, a result of

climate change In common usage, climate change describes global warming—the ongoing increase in global average temperature—and its effects on Earth's climate system. Climate change in a broader sense also includes previous long-term changes to E ...

References

External links

* Weather forecast
Mount Powell
* Point Powell
Mountain-Forecast.com
{{DEFAULTSORT:Powell, Mount Inyo National Forest Mountains of Inyo County, California Mountains of Fresno County, California Mountains of Kings Canyon National Park Mountains of the John Muir Wilderness North American 4000 m summits Mountains of Northern California Sierra Nevada (United States)