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Mountain · Mayacamas Mountains · California

Mount Saint Helena

1,319 m4,327 ft

Prominence: 555 m1,820 ft
Isolation: 17 km
Tonight: 50°FClear · Wind 1–10 mph NNE

Mount Saint Helena is a 1,319 m (4,327 ft) mountain in the Mayacamas Mountains, California, United States.

All facts

Elevation: 1,319 m · 4,327 ft
Nearest higher peak: Cobb Mountain (1,440 m)
Range: Mayacamas Mountains
Region: California, United States
Coordinates: 38.6693° N, 122.6336° W

Open the 3D view

3D map

Mount Saint Helena 3D map

Drag to orbit · click, then scroll to zoom (or Ctrl/⌘ + scroll) · One finger scrolls the page · two fingers orbit and zoom · 6.2 × 6.2 km

Surface

Vertical scale

Topographic map

Mount Saint Helena terrain and contours

50 m contours from the USGS 3DEP 10 m terrain model. Click two points on the map to draw your own cross-section.Tap two points on the map to draw your own cross-section.

Index contours every 250 mShowing west → east through the summit

Mount Saint Helena elevation profile

West → east through the summit

Hover the profile to read elevation and distance.Tap or drag along the profile to read elevation and distance.

Weather

Mount Saint Helena weather

Tonight · Clear · 50°F (10°C) · Wind 1–10 mph NNE

Mount Saint Helena forecast for the summit, about 634 m.

Tonight50°–1–10 mph NNE
Sat49°65°–0–12 mph NNW
Sun47°63°–1–5 mph SSE
Mon45°58°3%2–7 mph W
Tue46°59°1%3 mph WNW
Wed48°59°–3 mph NNE
Thu47°57°22%0–3 mph SW

Forecast data: NOAA National Weather Service, public domain, model run Oct 23, 21:51 UTC.

Slope

Share of the 6.2 × 6.2 km view by steepness, from the 10 m model.

Mixed terrain: gentle slopes, steep faces and everything between.

Gentle, 0–15°

17.0%

Moderate, 15–30°

43.5%

Steep, 30–45°

37.7%

Cliffs, 45° and over

1.8%

Steeper than 30°: 39.5% of the 38 km² view
Relief in view: 1,133 m low point 189 m

Land cover

ESA WorldCover 10 m classification of the same area.

Trees 88.2%Grassland 9.7%Shrubland 1.7%

Snow & ice means glaciers and year-round snow (a yearly average), not today’s snow cover.

Nearby summits

Named peaks within 3.1 km, measured from the Mount Saint Helena summit.

Summit list 5

1Goat Roost Rock984 m 1.9 km NNW
2Mount Saint Helena South Peak1,220 m 2.0 km SE
3Sugarloaf Hill508 m 2.4 km SW
4Schoolhouse Point804 m 2.7 km NW
5Flag Peak841 m 3.1 km N

Wildlife

Wildlife seen nearby

Sightings of the most-seen species on iNaturalist (research grade) within 3.1 km; 425 species recorded in all.

Sightings per species 6

Bush Poppy86
Mountain Pride74
Chaparral pea59
Golden chinquapin44
Snowbrush Ceanothus42
Hoary manzanita39

Where it sits

Where Mount Saint Helena sits

Nearby

Nearby places

More 1

Briones ReservoirLake92 km SSE

Mount Saint Helena 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

JPGMount Saint Helena satellite image (JPEG)Sentinel-2 true-colour image of the same area, taken 2026-09-08.

3D printing & 3D apps

GIS & GPS

</>Embed this mapPaste this into your site to show the interactive 3D terrain, with a credit link back here.

<iframe src="https://topolu.com/embed/mount-saint-helena" width="100%" height="480" style="border:0" loading="lazy" allowfullscreen title="3D terrain of Mount Saint Helena"></iframe>
<p><a href="https://topolu.com/mount-saint-helena" rel="nofollow">Topolu</a></p>

Free to use with credit: see the data sources

Accuracy

How accurate is this?

within 10 m This 3D map reads 1,322 m at the summit; the official height is 1,319 m.

A 10 m terrain model averages each cell, so a few metres either way is normal.

Source	Summit	Difference
Official height (Wikidata)	1,319 m	—
USGS 3DEP 10 m (used on this page)	1,322 m	+3 m
Copernicus GLO-30	1,320 m	+1 m
Copernicus GLO-90	1,314 m	-5 m

Data sources

Terrain: U.S. Geological Survey, 3D Elevation Program (public domain)
Imagery: Contains modified Copernicus Sentinel data 2026 (scene 2026-09-08)
Land cover: © ESA WorldCover project 2021 / Contains modified Copernicus Sentinel data (2021) processed by ESA WorldCover consortium
Facts: Wikidata (CC0)
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