Otay Mountain Wilderness
The Otay Mountain Wilderness is located near the U.S.-Mexico border in eastern San Diego County. Because of its proximity to the international border with Mexico, however, the Border Patrol continue to work in the Wilderness constructing and patrolling a section of the Border Wall. The mountain represents a unique ecosystem, home to twenty sensitive plant and animal species, including the endangered quino checkerspot butterfly, the only known stand of Tecate cypress, as well as the only known population of the Mexican flannel bush. The area was recommended by the Bureau of Land Management for Wilderness designation more than ten years before it was designated.
Description from Wilderness Connect (wilderness.net).
| Designation | Wilderness |
| Managed by | Bureau of Land Management |
| State | California |
| Size | 16,893 acres |
| Designated | 1999, by Congress |
| Center point | 32.60° N, 116.84° W |
| Night sky | Some glow on the horizon (Black Marble reading 51) |
Boundary map
Boundary, simplified to about 0.005 degrees
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 is within ten miles of the boundary in the Campsite Atlas index. Camping inside a wilderness is usually allowed away from trails and water, with no facilities; the managing agency page has the permit and group-size rules.
Fire nearby
- PrescribedOak Woodlands Wcsl Rx
20 mi from the center point
Distance is to the reported incident point, not the fire edge, and is measured from the center of a boundary that may be many miles across. Check the agency page for closures.
Explore
Nearby on the other atlases
- 7.3 miU.s. Inspection Station/U.S. Custom House ↗San Ysidro, CA
- 7.9 miUs Inspection Station--Tecate ↗Tecate, CA
- 11.4 miGranger Hall ↗National City, CA
- 11.7 miSt. Matthew's Episcopal Church ↗National City, CA
- 11.8 miStation and General Office, California Southern Railroad ↗National City, CA
- 11.9 miBrick Row ↗National City, CA
- 12.6 miInitial Point of Boundary Between U.s. and Mexico ↗San Diego, CA
- 15 miHaines, Alfred, House ↗San Diego, CA
Landmarks are listed first, then by distance from the boundary.
Guidebooks for California
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Titles come from Open Library's catalog, matched by subject heading or by title.
Reference
Questions people ask
How big is Otay Mountain Wilderness?
16,893 acres.
Source: Wilderness Connect
Who manages Otay Mountain Wilderness?
The Bureau of Land Management.
Source: Wilderness Connect
What state is Otay Mountain Wilderness in?
California.
Source: Wilderness Connect
When was Otay Mountain Wilderness designated?
Congress designated it in 1999.
Source: Wilderness Connect
How do I get to Otay Mountain Wilderness?
A point inside the boundary is at 32.595° N, 116.839° W. Cabrillo National Monument is 19 miles away. The official page carries directions and the office address.
Source: Wilderness Connect
Is there a fire near Otay Mountain Wilderness right now?
1 active incident within 50 miles as of 2026-11-01, the nearest Oak Woodlands Wcsl Rx at 20 miles. Distance is to the reported incident point, not the fire edge.
Source: Fire nearby
Which national parks are near Otay Mountain Wilderness?
Cabrillo National Monument (19 mi). Park Atlas has fees, hours and alerts for each.
Source: Nearby on the other atlases
Are there historic places near Otay Mountain Wilderness?
The National Register has 8 listings within 15 miles, including U.s. Inspection Station/U.S. Custom House and Us Inspection Station--Tecate.
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.
- 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.