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Mount Williamson

Mount Williamson
Mount Williamson as seen from Manzanar in the Owens Valley
Highest point
Elevation14,379 ft (4,383 m) NAVD 88[1]
Prominence1,643 ft (501 m)[1]
Parent peakMount Whitney[2]
Isolation5.44 mi (8.75 km)[1]
Listing
Coordinates36°39′22″N 118°18′40″W / 36.6560456°N 118.3112048°W / 36.6560456; -118.3112048[6]
Geography
Mount Williamson is located in California
Mount Williamson
Mount Williamson
LocationInyo County, California, U.S.
Parent rangeSierra Nevada
Topo mapUSGS Mount Williamson
Climbing
First ascent1884 by William L. Hunter and C. Mulholland[7]
Easiest routeSoutheast face from George Creek, easy scramble, class 2[7]

Mount Williamson, at an elevation of 14,379 feet (4,383 m), is the second-highest mountain in both the Sierra Nevada range and the state of California, and the sixth-highest peak in the contiguous United States.

Geography

Mount Williamson (center) (14,379 feet or 4,383 metres), from near the Independence Airport.

Williamson stands in the John Muir Wilderness of the Inyo National Forest. It is located approximately 6 miles (10 km) north of Mount Whitney, the highest peak in the contiguous U.S., and about 2.5 miles (4 km) southwest of Shepherd Pass, the nearest trail access. The closest town is Independence, California, about 12 miles (19 km) to the north-north-east. It lies about 1 mile (1.6 km) east of the Sierra Crest, which forms the western edge of the Owens Valley. It is more remote than Whitney in terms of access; however, as it sits east of the crest, it is actually a bit closer to the Owens Valley floor than Whitney. For example, the drop from the summit to the forest edge is 8,000 feet (2,400 m) in approximately 4 miles (6.4 km). This makes it an imposing mountain, and a much less popular climb than its higher neighbor.

Climate

Climate data for Mount Williamson 36.6570 N, 118.3108 W, Elevation: 13,780 ft (4,200 m) (1991–2020 normals)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Mean daily maximum °F (°C) 19.4
(−7.0) 		22.8
(−5.1) 		24.4
(−4.2) 		30.2
(−1.0) 		38.1
(3.4) 		48.6
(9.2) 		55.5
(13.1) 		54.6
(12.6) 		49.4
(9.7) 		40.8
(4.9) 		29.9
(−1.2) 		18.9
(−7.3) 		36.1
(2.3)
Mean daily minimum °F (°C) −7.7
(−22.1) 		−4.0
(−20.0) 		0.9
(−17.3) 		5.9
(−14.5) 		12.3
(−10.9) 		20.7
(−6.3) 		26.6
(−3.0) 		25.9
(−3.4) 		21.2
(−6.0) 		10.5
(−11.9) 		−1.6
(−18.7) 		−8.1
(−22.3) 		8.6
(−13.0)
Average precipitation inches (mm) 7.69
(195) 		6.44
(164) 		5.45
(138) 		3.85
(98) 		1.68
(43) 		0.43
(11) 		0.30
(7.6) 		0.22
(5.6) 		0.30
(7.6) 		1.82
(46) 		2.31
(59) 		7.02
(178) 		37.51
(952.8)
Source: PRISM Climate Group[8]

History

The mountain is named for Lt. Robert Stockton Williamson (1825–1882), who conducted one of the Pacific Railroad Surveys in Southern California.[9]

The first recorded ascent of Mount Williamson was made in 1884 by W. L. Hunter and C. Mulholland, by way of the Southeast Slopes Route. The first ascent of the West Side Route was made in 1896 by Bolton C. Brown and Lucy Brown. New routes continued to be put up on the harder faces at least through the 1980s.[7]

Climbing

The standard ascent route is the West Side Route, accessed from Shepherd's Pass. From the pass, one travels across the Williamson Bowl, which lies between Mount Williamson and Mount Tyndall, part of the Sierra Crest. The bowl is home to five high alpine lakes. From the bowl, the route climbs gullies up the west face to the relatively broad summit plateau; this portion involves scrambling up to class 3. Technically easier, but with a more difficult approach which can involve route finding and bushwhacking, is the Southeast Slopes Route, rising from George Creek. Other routes exist on the mountain, including a significant technical route on the North Rib (Grade IV, 5.7).[7]

Climbing Mount Williamson is made more difficult by the lengthy and strenuous approach. Elevation gain from the trailhead is over 8,000 feet (2,400 m), and the trail to Shepherd's Pass alone is 11 miles (18 km).

Mount Williamson is situated in the California Bighorn Sheep Zoological Area. These rare animals can often be seen on the lower slopes during the winter when heavy snows drive the sheep down from their summer grazing areas. From 1981 until 2010 the California Bighorn Sheep Zoological Area was closed to access for much of the year, but late in 2010, the Inyo National Forest Service declined to renew the closure, opening the area to access year-round.[10]

See also

References

Mount Williamson, with Trojan Peak (left)
  1. ^ a b c "Mount Williamson, California". Peakbagger.com. Retrieved January 1, 2016.
  2. ^ "Vacation Pass". Peakbagger.com. Retrieved 2016-03-24.
  3. ^ "California 14,000-foot Peaks". Peakbagger.com. Retrieved 2016-03-24.
  4. ^ "Sierra Peaks Section List" (PDF). Angeles Chapter, Sierra Club.
  5. ^ "Western States Climbers Qualifying Peak List". Climber.org. Retrieved 2016-03-24.
  6. ^ "Mount Williamson". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved 2009-08-07.
  7. ^ a b c d Secor, R.J. (2009). The High Sierra Peaks, Passes, and Trails (3rd ed.). Seattle: The Mountaineers. pp. 86–90. ISBN 978-0898869712.
  8. ^ "PRISM Climate Group, Oregon State University". PRISM Climate Group, Oregon State University. Archived from the original on July 25, 2019. Retrieved September 28, 2023. To find the table data on the PRISM website, start by clicking Coordinates (under Location); copy Latitude and Longitude figures from top of table; click Zoom to location; click Precipitation, Minimum temp, Mean temp, Maximum temp; click 30-year normals, 1991-2020; click 800m; click Retrieve Time Series button.
  9. ^ Farquhar, Francis P. (1926). Place Names of the High Sierra. San Francisco: Sierra Club. Retrieved 2009-08-03.
  10. ^ "Forest Service Proposes to Change Designation of Bighorn Sheep Zoological Areas". United States Forest Service, Bishop, CA. September 25, 2010. Archived from the original on 2021-04-13. Retrieved 2011-06-03.
Quelle: http://en.wikipedia.org/wiki/Mount_Williamson