San Antonio Reservoir
- Area
- 3.20 km²
- Tonight
- 49°FClear · Wind 1–5 mph ESE
San Antonio Reservoir is a lake at 142 m above sea level in California, United States, 3.20 km² in area and 4.4 km long.
All facts
- Surface elevation
- 142 m
- Length
- 4.4 km
- Shoreline
- 23.8 km
San Antonio Reservoir in numbers
Shoreline from OpenStreetMap.
- Shoreline
- 23.8 km≈6 h to walk around
San Antonio Reservoir 3D map
Drag to orbit · click, then scroll to zoom (or Ctrl/⌘ + scroll) · One finger scrolls the page · two fingers orbit and zoom · 6.4 × 6.4 km
San Antonio Reservoir terrain and contours
20 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.
San Antonio Reservoir elevation profile
West → east through the centre
San Antonio Reservoir weather
Tonight · Clear · 49°F (9°C) · Wind 1–5 mph ESE
San Antonio Reservoir forecast for about 199 m.
- Tonight49°–1–5 mph ESE
- Sat51°67°–2–6 mph NNE
- Sun51°71°–0–7 mph WNW
- Mon48°66°1%1–9 mph WSW
- Tue48°65°1%1–7 mph WSW
- Wed50°65°–1–7 mph SW
- Thu49°64°18%1–7 mph W
Forecast data: NOAA National Weather Service, public domain, model run Oct 23, 21:51 UTC.
Camping & parking near San Antonio Reservoir
Campsites, parking, trailheads and mountain huts mapped in OpenStreetMap around San Antonio Reservoir, nearest first, by straight-line distance. Check access, fees and permits locally.
Nearest parking
5.3 km WNW
Nearest trailhead
6.1 km WNW
Nearest campsite
High Valley Camp
All mapped places 5
| Place | Distance |
|---|---|
| Parking | 5.3 km WNW |
| Parking | 5.6 km WNW |
| Parking | 5.6 km WNW |
| Trailhead | 6.1 km WNW |
| High Valley CampCampsite | 6.2 km S |
Slope
Share of the 6.4 × 6.4 km view by steepness, from the 10 m model.
Mostly gentle: 59% of the view is under 15°.
- Steeper than 30°
- 7.5% of the 41 km² view
- Relief in view
- 552 m low point 18 m
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.
Wildlife seen nearby
Sightings of the most-seen species on iNaturalist (research grade) within 3.2 km; 322 species recorded in all.
Sightings per species 6
- Anna's Hummingbird20
- Northern Mockingbird17
- California Towhee10
- Foothill Yellow-legged Frog9
- Gopher Snake9
- Western Fence Lizard9
Where San Antonio Reservoir sits
- Region
- California152United States932North America1,313
Nearby places
San Antonio Reservoir 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.
3D printing & 3D apps
GIS & GPS
Free to use with credit: see the data sources
Data sources
- Terrain
- U.S. Geological Survey, 3D Elevation Program (public domain)
- Imagery
- Contains modified Copernicus Sentinel data 2026 (scene 2026-08-26)
- Land cover
- © ESA WorldCover project 2021 / Contains modified Copernicus Sentinel data (2021) processed by ESA WorldCover consortium
- Facts
- Wikidata (CC0)
- Camping & parking, Geometry
- © OpenStreetMap contributors (ODbL)
- Protected area
- USGS Gap Analysis Project, PAD-US (public domain)
- Wildlife
- iNaturalist community observations, counts only
- 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)