Also on the map ofSierra Nevada‹ American Cordillera
Mount Williamson
- Mapped trail
- 17.3 km+1,958 m · about 7.5 hEnds 720 m below the summit.
- Prominence
- 563 m1,848 ft
- Isolation
- 8.7 km
- Tonight
- 20°FSnow showers · Wind 7–17 mph NNE
Mount Williamson is a 4,390 m (14,403 ft) mountain in the Sierra Nevada, California, United States.
All facts
- Elevation
- 4,390 m · 14,403 ft
- Nearest higher peak
- Mount Whitney (4,421 m)
- Range
- Sierra Nevada
- Region
- California, United States
- Protected area
- Inyo National Forest
- Coordinates
- 36.6560° N, 118.3112° W
Trails toward Mount Williamson
Mapped trails from the road get to 720 m below the summit, typically a pass, lake or camp. The top itself is a mountaineering climb with no mapped route.
From Shepherd Pass Trailhead (trailhead)
- Distance
- 17.3 kmone way
- Climb
- +1,958 m−227 m (6,424 ft up)
- Time up
- about 7.5 h
- Difficulty
- Grade not mapped
Ends 720 m below the summit.
Routes © OpenStreetMap contributors, available under the ODbL. Climb from the terrain model. Trails change and maps miss things: check conditions locally.
Mount Williamson 3D map
Drag to orbit · click, then scroll to zoom (or Ctrl/⌘ + scroll) · One finger scrolls the page · two fingers orbit and zoom · 10 × 10 km
Mount Williamson terrain and contours
100 m contours from the USGS 3DEP 10 m terrain model. The route drawn is the easiest mapped one, from Shepherd Pass Trailhead. Click two points on the map to draw your own cross-section.Tap two points on the map to draw your own cross-section.
West → east through the summit
Mount Williamson weather
Today · Snow showers · 20 / 27°F (-7 / -3°C) · 39% chance of precipitation · Wind 7 mph NNE
Mount Williamson forecast for the summit, about 3,698 m. Summit vs base: the Base line is for about 2,125 m.
- Today20°27°39%7 mph NNEBase 36 / 47°
- Sat24°32°–2–18 mph NBase 39 / 52°
- Sun27°38°–2–7 mph SSWBase 42 / 57°
- Mon27°39°–6–9 mph SWBase 42 / 59°
- Tue27°40°–3–14 mph WSWBase 42 / 59°
- Wed27°38°1%3–7 mph SWBase 43 / 57°
- Thu26°35°8%7 mph SWBase 41 / 54°
Forecast data: NOAA National Weather Service, public domain, model run Oct 23, 18:33 UTC.
Camping & parking near Mount Williamson
Campsites, parking, trailheads and mountain huts mapped in OpenStreetMap around Mount Williamson, nearest first, by straight-line distance. Check access, fees and permits locally.
Nearest campsite
Anvil Camp
All mapped places 1
| Place | Distance |
|---|---|
| Anvil CampCampsite | 4.1 km NNW |
How steep is the route to Mount Williamson?
The easiest mapped route, 17.3 km from 1,928 m to 3,656 m. Steepest stretch: 19°.
- 0–15°17.1 km
- 15–30°0.2 km
Grades are averaged between profile points about 180 m apart, so short steeper steps don’t show.
Land cover
ESA WorldCover 10 m classification of the same area.
Snow & ice means glaciers and year-round snow (a yearly average), not today’s snow cover.
Nearby summits
Named peaks within 5 km, measured from the Mount Williamson summit.
Summit list 5
- 1Trojan Peak4,245 m 1.6 km SSW
- 2Mount Versteeg4,107 m 1.6 km SW
- 3Mount Tyndall4,275 m 2.3 km W
- 4Polychrome Peak3,970 m 2.8 km NW
- 5Mount Barnard4,266 m 3.2 km SSW
Wildlife seen nearby
Sightings of the most-seen species on iNaturalist (research grade) within 5 km; 138 species recorded in all.
Sightings per species 6
- Alpine Gold18
- Sierra Columbine13
- Sierra Nevada Sky Pilot11
- Cushion buckwheat10
- Western roseroot10
- Sierra Nevada Yellow-legged Frog9
Where Mount Williamson sits
- Region
- California152United States932North America1,313
Ranked in 1
Nearby places
Forester Pass4,009 m↑6.9 km NW
Tulainyo Lake↑7.1 km SSE
Mount WhitneyPeak · 4,421 m↑8.8 km S
Kearsarge Pass3,569 m↑14 km NNW
Glen Pass3,635 m↑17 km NNW
More 1
More in the Sierra Nevada 6
Mount Williamson downloads: topographic map, heightmap, STL 3D model and DEM
Free files made in your browser from this page's terrain data. No sign-up; credit the sources below.
Print & wall
3D printing & 3D apps
Free to use with credit: see the data sources
How accurate is this?
within 10 m This 3D map reads 4,381 m at the summit; the official height is 4,390 m.
A 10 m terrain model averages each cell, so a few metres either way is normal. The 90 m model misses by 35 m.
| Source | Summit | Difference |
|---|---|---|
| Official height (Wikidata) | 4,390 m | — |
| USGS 3DEP lidar | 4,383 m | -7 m |
| USGS 3DEP 10 m (used on this page) | 4,381 m | -9 m |
| Copernicus GLO-30 | 4,363 m | -27 m |
| Copernicus GLO-90 | 4,355 m | -35 m |
Data sources
- Terrain
- U.S. Geological Survey, 3D Elevation Program (public domain)
- Imagery
- Contains modified Copernicus Sentinel data 2026 (scene 2026-08-03)
- Land cover
- © ESA WorldCover project 2021 / Contains modified Copernicus Sentinel data (2021) processed by ESA WorldCover consortium
- Facts
- Wikidata (CC0)
- Routes, Camping & parking
- © OpenStreetMap contributors (ODbL)
- Summits
- © OpenStreetMap contributors, via Overture Maps Foundation (ODbL)
- Protected area
- USGS Gap Analysis Project, PAD-US (public domain)
- Wildlife
- iNaturalist community observations, counts only
- Accuracy comparison
- Includes Copernicus WorldDEM-30 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved. The European Union, ESA, DLR and Airbus incur no liability for any use of this data and do not endorse this service.
- Accuracy comparison, Panorama
- Includes Copernicus WorldDEM-90 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved. The European Union, ESA, DLR and Airbus incur no liability for any use of this data and do not endorse this service.
- Forecast
- Weather forecast from NOAA National Weather Service (public domain)
- Sources
- Wikidata · OpenStreetMap · GeoNames · Wikipedia