Mount Williamson

Mount Williamson
Mount Williamson as seen fromManzanarin theOwens Valley
Highest point
Elevation	14,379 ft (4,383 m)NAVD 88
Prominence	1,643 ft (501 m)
Parent peak	Mount Whitney
Isolation	5.44 mi (8.75 km)
Listing	North America highest peaks31st U.S. highest major peaks18th California highest major peaks2nd California fourteeners2nd SPSEmblempeak Western States Climbers Star peak
Coordinates	36°39′22″N118°18′40″W
Geography
Mount Williamson
Location	Inyo County, California,U.S.
Parent range	Sierra Nevada
Topo map	USGSMount Williamson
Climbing
First ascent	1884 by William L. Hunter and C. Mulholland
Easiest route	Southeast face from George Creek, easyscramble,class 2

Mount Williamson,at an elevation of 14,379 feet (4,383 m), is the second-highest mountain in both theSierra Nevadarange and the state ofCalifornia,and the sixth-highest peak in thecontiguous United States.

Geography

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

Williamson stands in theJohn Muir Wildernessof theInyo National Forest.It is located approximately 6 miles (10 km) north ofMount 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 isIndependence, 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 theOwens 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)
Averageprecipitationinches (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

History

The mountain is named for Lt.Robert Stockton Williamson(1825–1882), who conducted one of thePacific Railroad Surveysin Southern California.

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.

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 andMount 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 involvesscramblingup toclass 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).

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 theCalifornia Bighorn SheepZoological 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.

See also

• Mountains portal
• Media related toMount Williamsonat Wikimedia Commons
• List of mountain peaks of California

References

Mount Williamson, withTrojan Peak(left)

External links

• "Mount Williamson".SummitPost.org.
• "Ansel Adams: Classic Images".Mount Williamson, The Sierra Nevada, from Manzanar, California, 1945.Housatonic Museum of Art. Archived fromthe originalon 2007-05-08.Retrieved2007-02-26.