USFS · NPS · California

Ansel Adams Wilderness

This wilderness was originally established as the Minarets Wilderness in 1964. These "minarets", a jagged ridge of peaks known as the Ritter Range, are considered to be the one of the most spectacular...

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

Official page at Wilderness Connect ↗
Ansel Adams Wilderness
Photo from Wilderness Connect, wilderness.net
DesignationWilderness
Managed byU.S. Forest Service and National Park Service
StateCalifornia
Size231,619 acres (Wilderness Connect)
Designated1964, by Congress
Center point37.5939, -119.1817
Night skyAbout as dark as the ground gets (Black Marble reading 17)

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 Ansel Adams Wilderness20°30°40°50°60°70°January: 4.20 inches of precipitationFebruary: 3.77 inches of precipitationMarch: 3.28 inches of precipitationApril: 1.54 inches of precipitationMay: 1.49 inches of precipitationJune: 0.47 inches of precipitationJuly: 0.51 inches of precipitationAugust: 0.49 inches of precipitationSeptember: 0.47 inches of precipitationOctober: 1.43 inches of precipitationNovember: 2.00 inches of precipitationDecember: 4.07 inches of precipitationJanFebMarAprMayJunJulAugSepOctNovDecJanuary: 28.9°F averageFebruary: 29.4°F averageMarch: 33.8°F averageApril: 39.1°F averageMay: 47.4°F averageJune: 56.2°F averageJuly: 63.4°F averageAugust: 62.4°F averageSeptember: 55.5°F averageOctober: 45.5°F averageNovember: 36.2°F averageDecember: 29.2°F average0 in1 in2 in3 in4 in5 inTemp °FInches
The line is the average temperature and the bars are average precipitation at Mammoth Lakes RS, 13 miles from the center point at 7,804 feet, station USC00045280 in the NOAA monthly climate normals for 1991 to 2020. Precipitation totals about 24 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. 59 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 more

47 more within ten miles are not listed here.

Trailheads and sites

Forest Service directory · 1

The Forest Service lists 1 recreation site inside this wilderness, among them 1 campground. 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.

126 named Forest Service trails enter this wilderness, 514 miles in all. The 10 longest are listed here.

TrailMiles
PCT - Pacific Crest Trail66.9
California Riding and Hiking49.4
French21.5
John Muir14
Mammoth12.8
Isberg11.9
String Meadow11.9
Millers Crossing11.4
Stevenson11.4
Iron Creek10.2

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.

Fire nearby

Within 50 miles · as of 2026-09-18
  • Wildfire
    Dome

    24 mi from the center point · 1,177 acres · 10% contained

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

National Register listings within 15 miles · 22 in all · Register Atlas

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

Reference

Questions people ask

How big is Ansel Adams Wilderness?

231,619 acres.

Source: Wilderness Connect

Who manages Ansel Adams Wilderness?

U.S. Forest Service and National Park Service share management. The U.S. Forest Service portion is the largest in the wilderness record.

Source: Wilderness Connect

What state is Ansel Adams Wilderness in?

California.

Source: Wilderness Connect

When was Ansel Adams Wilderness designated?

Congress designated it in 1964.

Source: Wilderness Connect

Can I camp at Ansel Adams Wilderness?

No federal campground sits inside the boundary. The nearest is Pumice Flat Group Camp, 0.1 miles out. 59 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 Ansel Adams Wilderness?

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

Source: Trailheads and sites

How do I get to Ansel Adams Wilderness?

A point inside the boundary is at 37.594, -119.182. Devils Postpile National Monument is adjacent. The official page carries directions and the office address.

Source: Wilderness Connect

Is there a fire near Ansel Adams Wilderness right now?

1 active incident within 50 miles as of 2026-09-18, the nearest Dome at 24 miles. Distance is to the reported incident point, not the fire edge.

Source: Fire nearby

How dark is the night sky at Ansel Adams 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

Which national parks are near Ansel Adams Wilderness?

Devils Postpile National Monument (adjacent) and Yosemite National Park (18 mi). Park Atlas has fees, hours and alerts for each.

Source: Nearby on the other atlases

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.