BLM · USFS · California

Santa Rosa Wilderness

The stark Colorado Desert, with its agave, ocotillo, and creosote, rises up boulder-strewn and eroded canyons to chaparral, juniper, and pine-covered ridges. Elevations change drastically from just above...

Description from Wilderness Connect (wilderness.net), where the full text continues.

Official page at Wilderness Connect ↗
Santa Rosa Wilderness
Photo from Wilderness Connect, wilderness.net
DesignationWilderness
Managed byBureau of Land Management and U.S. Forest Service
StateCalifornia
Size78,576 acres (Wilderness Connect)
Designated1984, by Congress
Center point33.5138, -116.3145
Night skyVery dark ground, a faint glow at most (Black Marble reading 27)

Boundary map

1 outline

Boundary, simplified to about 0.005 degrees Federal campground Forest Service recreation site

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

NOAA climate normals →
Weather by month near Santa Rosa Wilderness50°60°70°80°90°100°January: 0.64 inches of precipitationFebruary: 0.61 inches of precipitationMarch: 0.34 inches of precipitationApril: 0.08 inches of precipitationMay: 0.01 inches of precipitationJune: 0.01 inches of precipitationJuly: 0.13 inches of precipitationAugust: 0.12 inches of precipitationSeptember: 0.32 inches of precipitationOctober: 0.19 inches of precipitationNovember: 0.17 inches of precipitationDecember: 0.34 inches of precipitationJanFebMarAprMayJunJulAugSepOctNovDecJanuary: 55.0°F averageFebruary: 58.6°F averageMarch: 65.0°F averageApril: 71.0°F averageMay: 78.7°F averageJune: 86.1°F averageJuly: 91.2°F averageAugust: 90.6°F averageSeptember: 84.8°F averageOctober: 73.9°F averageNovember: 61.7°F averageDecember: 53.5°F average0 in0.5 in1 inTemp °FInches
The line is the average temperature and the bars are average precipitation at Desert Resorts Rgnl AP, 12 miles from the center point at -118 feet, station USW00003104 in the NOAA monthly climate normals for 1991 to 2020. Precipitation totals about 3 inches a year. The station sits about 3,900 feet lower than the center point, so temperatures on the ground run cooler.

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

Campsite Atlas →

No federal campground sits inside the boundary. 3 are within ten miles of it. Nearest first. Distances are from the campground point to the boundary edge, from the Campsite Atlas index.

Trailheads and sites

Forest Service directory · 1

The Forest Service lists 1 recreation site inside this wilderness, among them 1 viewpoint. Each links to its page on fs.usda.gov, which carries the season, fees and current status.

Distance is from the center point of the boundary, not from a road or town.

3 named Forest Service trails enter this wilderness, 23 miles in all.

TrailMiles
Cactus Springs10.2
Cactus Springs10.2
Sawmill2.5

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

National Register listings within 15 miles · 11 in all · Register Atlas

Landmarks are listed first, then by distance from the boundary.

Reference

Questions people ask

How big is Santa Rosa Wilderness?

78,576 acres.

Source: Wilderness Connect

Who manages Santa Rosa Wilderness?

Bureau of Land Management and U.S. Forest Service share management. The Bureau of Land Management portion is the largest in the wilderness record.

Source: Wilderness Connect

What state is Santa Rosa Wilderness in?

California.

Source: Wilderness Connect

When was Santa Rosa Wilderness designated?

Congress designated it in 1984.

Source: Wilderness Connect

Can I camp at Santa Rosa Wilderness?

No federal campground sits inside the boundary. The nearest is Ribbonwood Equestrian Cg, 0.8 miles out. 3 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

Where are the trailheads in Santa Rosa Wilderness?

The Forest Service lists 1 recreation site here, including 1 viewing scenery. Each one links to its Forest Service page.

Source: Trailheads and sites

How do I get to Santa Rosa Wilderness?

A point inside the boundary is at 33.514, -116.314. The official page carries directions and the office address.

Source: Wilderness Connect

How dark is the night sky at Santa Rosa Wilderness?

NASA’s Black Marble night-lights image reads 27 on a 0 to 255 scale at the center point, very dark ground, a faint glow at most.

Source: NASA Black Marble

Are there historic places near Santa Rosa Wilderness?

11 National Register listings within 15 miles, including Martinez Canyon Rockhouse and Martinez Historical District.

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.