San Gabriel Wilderness
Extremely rugged and scenic terrain ranging in elevation from about 1,600 feet to 8,200 feet predominates in San Gabriel Wilderness. Dense thickets of chaparral in the low country yield to mixed pine-...
Description from Wilderness Connect (wilderness.net), where the full text continues.
| Designation | Wilderness |
| Managed by | U.S. Forest Service |
| State | California |
| Size | 35,738 acres (Wilderness Connect) |
| Designated | 1968, by Congress |
| Center point | 34.2935, -117.9326 |
| Night sky | About as dark as the ground gets (Black Marble reading 17) |
Boundary map
Boundary, simplified to about 0.005 degrees Federal campground
The outline is the agency boundary simplified for display, so small parcels and inholdings may not show. The agency page has the authoritative map.
Weather by month
Large units span more than one climate. The station stands in for the center point, and the outer parts of the boundary can be warmer or colder.
Where to camp
No federal campground sits inside the boundary. 30 are within ten miles of it. Nearest first. Distances are from the campground point to the boundary edge, from the Campsite Atlas index.
Show 4 moreHide
18 more within ten miles are not listed here.
Trails
6 named Forest Service trails enter this wilderness, 22 miles in all.
| Trail | Miles | Allowed uses |
|---|---|---|
| Bear Creek Trail ↗ | 9.6 | |
| MT. Waterman #1 ↗ | 5.3 | |
| MT. Waterman #2 | 3.1 | |
| Devils Canyon | 2.8 | |
| Twin Peaks | 1 | |
| Sierra Alta | 0.2 |
Lengths and allowed uses come from the Forest Service trail layer by way of Trailhead Atlas, refreshed September 18, 2026. Trails in plain text have no page there yet.
Explore
Nearby on the other atlases
- 3.4 miFox Fullerton Theatre Complex ↗Fullerton, CA
- 5.8 miPegler, John Carlton, House ↗Sierra Madre, CA
- 5.8 miOaks, The ↗Monrovia, CA
- 6 miEpiscopal Church of the Ascension ↗Sierra Madre, CA
- 6.1 miAztec Hotel ↗Monrovia, CA
- 6.3 miRubel Castle Historic District ↗Glendora, CA
- 6.4 mi
- 6.4 mi
Landmarks are listed first, then by distance from the boundary.
Reference
Questions people ask
How big is San Gabriel Wilderness?
35,738 acres.
Source: Wilderness Connect
Who manages San Gabriel Wilderness?
The U.S. Forest Service.
Source: Wilderness Connect
What state is San Gabriel Wilderness in?
California.
Source: Wilderness Connect
When was San Gabriel Wilderness designated?
Congress designated it in 1968.
Source: Wilderness Connect
Can I camp at San Gabriel Wilderness?
No federal campground sits inside the boundary. The nearest is Glenn Camp (Hike or bike in 7 miles), 0.1 miles out. 30 in all are within ten miles. Camping inside a wilderness is usually allowed away from roads, with no facilities; the managing agency page has the permit rules.
Source: Where to camp
How do I get to San Gabriel Wilderness?
A point inside the boundary is at 34.294, -117.933. The official page carries directions and the office address.
Source: Wilderness Connect
How dark is the night sky at San Gabriel Wilderness?
NASA’s Black Marble night-lights image reads 17 on a 0 to 255 scale at the center point, about as dark as the ground gets.
Source: NASA Black Marble
Are there historic places near San Gabriel Wilderness?
179 National Register listings within 15 miles, including Fox Fullerton Theatre Complex and Pegler, John Carlton, House.
Source: Register Atlas
Sources
- Boundary, name, acreage, designation year, states and description: Wilderness Connect.
- Campgrounds: the Campsite Atlas index of federal campgrounds, matched to this boundary at build time.
- Trailheads and sites: the Forest Service Recreation Opportunities layer, points inside the boundary.
- Trails: the Trailhead Atlas open-data file of Forest Service trails, matched on the wilderness each trail enters.
- Night sky: NASA Black Marble (VIIRS, 2016 composite) sampled at zoom 6 around the center point.
- Weather, alerts, air quality, river flow and earthquakes load live in your browser from NWS, AirNow, USGS and iNaturalist when you open the page.