Eocene Peak

Eocene Peak is a granitic summit with an elevation of 11,569 feet (3,526 m) located on the crest of the Sierra Nevada mountain range, in northern California, United States. The summit is situated on the common boundary shared by Yosemite National Park with Hoover Wilderness, as well as the common border of Mono County and Tuolumne County. The peak is set approximately three miles southwest of Twin Lakes, 1.3 mile southeast of Kettle Peak, and one mile south of The Incredible Hulk. The nearest town is Bridgeport, 15 miles to the northeast. Topographic relief is significant as the summit rises nearly 2,000 feet (610 meters) above Piute Creek in one mile. The first ascent of the summit was made July 16, 1932, by Richard M. Leonard and Herbert B. Blanks.[1] This landform's name has not been officially adopted by the U.S. Board on Geographic Names, so the feature is not labeled on USGS maps.

Eocene Peak
Southwest aspect, from Slide Canyon
Highest point
Elevation11,569 ft (3,526 m)[1]
Prominence409 ft (125 m)[2]
Parent peakSawtooth Ridge (11,780 ft)[3]
Isolation1.05 mi (1.69 km)[3]
Coordinates38°06′29″N 119°24′51″W[2]
Naming
EtymologyEocene
Geography
Eocene Peak is located in California
Eocene Peak
Eocene Peak
Location in California
Eocene Peak is located in the United States
Eocene Peak
Eocene Peak
Eocene Peak (the United States)
LocationYosemite National Park
Mono / Tuolumne counties
California, U.S.
Parent rangeSierra Nevada
Topo mapUSGS Matterhorn Peak
Geology
Age of rockCretaceous
Mountain typeFault block
Type of rockGranodiorite
Climbing
First ascent1932 [4]
Easiest routeclass 2 Southwest slope[1]

Climate

According to the Köppen climate classification system, Eocene Peak is located in an alpine climate zone.[5] Most weather fronts originate in the Pacific Ocean, and travel east toward the Sierra Nevada mountains. As fronts approach, they are forced upward by the peaks (orographic lift), causing moisture in the form of rain or snowfall to drop onto the range. Precipitation runoff from this landform drains north into Blacksmith Creek which is part of the Walker River drainage basin, and south into Piute Creek which is a tributary of the Tuolumne River.

See also
Sawtooth Ridge with Eocene Peak in upper right. Northeast aspect.

References
  1. R. J. Secor, The High Sierra Peaks, Passes, Trails, 1992, Mountaineers Books, ISBN 9780898863130, p. 348.
  2. "Eocene Peak, California". Peakbagger.com. Retrieved 2022-05-15.
  3. "Eocene Peak - 11,569' WA". listsofjohn.com. Retrieved 2022-05-15.
  4. Steve Roper (1976), The Climber's Guide to the High Sierra, Sierra Club Books, ISBN 9780871561473, p. 326
  5. "Climate of the Sierra Nevada". Encyclopædia Britannica.
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