BLM · California

Cedar Roughs Wilderness

The Cedar Roughs Wilderness, west of Lake Berryessa in Napa County, is a large mound of "serpentine" soil. Serpentine, California's official mineral, is a bluish-green (but sometimes reddish) rock that...

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

Official page at Wilderness Connect ↗
Cedar Roughs Wilderness
Photo from Wilderness Connect, wilderness.net
DesignationWilderness
Managed byBureau of Land Management
StateCalifornia
Size6,287 acres (Wilderness Connect)
Designated2006, by Congress
Center point38.5754, -122.2990
Night skyAbout as dark as the ground gets (Black Marble reading 14)

Boundary map

1 outline

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

NOAA climate normals →
Weather by month near Cedar Roughs Wilderness40°50°60°70°January: 7.80 inches of precipitationFebruary: 7.59 inches of precipitationMarch: 5.50 inches of precipitationApril: 2.37 inches of precipitationMay: 1.56 inches of precipitationJune: 0.36 inches of precipitationJuly: 0.01 inches of precipitationAugust: 0.04 inches of precipitationSeptember: 0.17 inches of precipitationOctober: 1.92 inches of precipitationNovember: 4.09 inches of precipitationDecember: 8.30 inches of precipitationJanFebMarAprMayJunJulAugSepOctNovDecJanuary: 46.5°F averageFebruary: 47.8°F averageMarch: 50.6°F averageApril: 54.1°F averageMay: 59.7°F averageJune: 65.7°F averageJuly: 69.4°F averageAugust: 69.1°F averageSeptember: 67.4°F averageOctober: 61.1°F averageNovember: 51.3°F averageDecember: 45.8°F average0 in2 in4 in6 in8 in10 inTemp °FInches
The line is the average temperature and the bars are average precipitation at Angwin Pacific Union College, 8 miles from the center point at 1,715 feet, station USC00040212 in the NOAA monthly climate normals for 1991 to 2020. Precipitation totals about 40 inches a year.

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. 2 are within ten miles of it. Nearest first. Distances are from the campground point to the boundary edge, from the Campsite Atlas index.

Explore

Nearby on the other atlases

National Register listings within 15 miles · 42 in all · Register Atlas

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

Reference

Questions people ask

How big is Cedar Roughs Wilderness?

6,287 acres.

Source: Wilderness Connect

Who manages Cedar Roughs Wilderness?

The Bureau of Land Management.

Source: Wilderness Connect

What state is Cedar Roughs Wilderness in?

California.

Source: Wilderness Connect

When was Cedar Roughs Wilderness designated?

Congress designated it in 2006.

Source: Wilderness Connect

Can I camp at Cedar Roughs Wilderness?

No federal campground sits inside the boundary. The nearest is Oak Shores Day Use Area, 0.9 miles out. 2 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 Cedar Roughs Wilderness?

A point inside the boundary is at 38.575, -122.299. The official page carries directions and the office address.

Source: Wilderness Connect

How dark is the night sky at Cedar Roughs Wilderness?

NASA’s Black Marble night-lights image reads 14 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 Cedar Roughs Wilderness?

42 National Register listings within 15 miles, including Maxwell Creek Bridge on Hardin Road and Nichelini Winery.

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.