Sentinel Rock

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For the granite dome near Glacier Point, Yosemite National Park, see Sentinel Dome.

Sentinel Rock
Sentinel Rock Yosemite California by Carleton E Watkins.jpg
"Sentinel Rock, Yosemite, California," by Carleton E. Watkins
Highest point
Elevation 7,038 ft (2,145 m) [1]
Coordinates 37°43′44″N 119°35′40″W / 37.7288151°N 119.594331°W / 37.7288151; -119.594331Coordinates: 37°43′44″N 119°35′40″W / 37.7288151°N 119.594331°W / 37.7288151; -119.594331
Geography
Location Yosemite National Park, Mariposa County, California, U.S.
Parent range Sierra Nevada
Topo map USGS Half Dome
Geology
Age of rock Cretaceous
Mountain type Granite
Climbing
First ascent June 30 - July 4, 1950, by Allen Steck and John Salathé[2]
Easiest route Circular Staircase (class 5.8)[3]

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.

How it was formed[edit]

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[edit]

The most famous climbing route is the Steck-Salathé route, which is rated a class 5.10b G A0.[2]

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

References[edit]

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