Sentinel Rock

For the granite dome near Glacier Point, Yosemite National Park, see Sentinel Dome.
Sentinel Rock
A photo of Sentinel Rock in Yosemite Valley
Highest point
Elevation7,038 ft (2,145 m)[1]
Coordinates37°43′44″N 119°35′40″W / 37.7288151°N 119.594331°W / 37.7288151; -119.594331[2]
Geography
Sentinel Rock is located in California
Sentinel Rock
Sentinel Rock
Location in California
Sentinel Rock is located in the United States
Sentinel Rock
Sentinel Rock
Sentinel Rock (the United States)
LocationYosemite National Park
Mariposa County, California, U.S.
Parent rangeSierra Nevada
Topo mapUSGS Half Dome
Geology
Rock ageCretaceous
Rock typeGranite
Climbing
First ascentJune 30 - July 4, 1950
by Allen Steck and John Salathé[3]
Easiest routeCircular Staircase (class 5.8)[4]

Sentinel Rock is a granitic peak in Yosemite National Park, California, United States. It towers over Yosemite Valley, opposite Yosemite Falls.[5] Sentinel Rock lies 0.7 miles (1.1 km) northwest of Sentinel Dome.

Geology

Sentinel Rock formed when masses of rock split off Yosemite Valley's south-side cliff, along steep joints trending nearly east–west. This formed the near-vertical north face of Sentinel Rock.[6]

Climbing

The most famous climbing route is the Steck-Salathé route, which is rated a class 5.10b G A0.[3]

Climber Derek Hersey died while attempting to free solo climb Sentinel Rock in 1993.[7]

  • Northwest aspect
    Northwest aspect
  • Sentinel Rock (right) in Yosemite Valley. (camera pointed east)
    Sentinel Rock (right) in Yosemite Valley. (camera pointed east)

References

  1. ^ "Natural Resource Statistics". Yosemite National Park. National Park Service. Retrieved 2009-01-28.
  2. ^ "Sentinel Rock". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved 2009-01-28.
  3. ^ a b "Steck-Salathe". rockclimbing.com. Retrieved 2014-01-20.
  4. ^ "Circular Staircase, Sentinel Rock 5.8". SuperTopo.com. Retrieved 2016-03-27.
  5. ^ "Rock Formations in Yosemite". Yosemite National Park. National Park Service. Retrieved 2007-08-14.
  6. ^ "Bedrock Geology of the Yosemite Valley Area Yosemite National Park, California". Geology and National Parks. USGS. Archived from the original on 2017-03-21. Retrieved March 20, 2017.
  7. ^ Roberts, Paul (1994-11-01). "Risk". Psychology Today. Retrieved 2011-07-27.


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