BLM · Utah

Mexican Mountain Wilderness

The Mexican Mountain Wilderness is characterized by features resulting from erosion of the multi-colored sedimentary rocks of the eastern San Rafael Swell. Brightly colored cliffs, buttes, ridges, alcoves, and pinnacles dominate the landscape with elevations ranging from 4,700 feet in the southeast to 6,900 feet on Mexican Mountain. Roughly half the area is barren rock with pinyon-juniper woodlands, brush, and grass covering the remaining land. This vegetation along with riparian growth provides for diverse habitat making the Wilderness home to bighorn sheep, cougars, raptors, and several reptile species. Two endangered plant species, the Maguire daisy and Wright fishhook cactus, grow here.

Description from Wilderness Connect (wilderness.net).

Official page at Wilderness Connect ↗
Mexican Mountain Wilderness
Photo from Wilderness Connect, wilderness.net
DesignationWilderness
Managed byBureau of Land Management
StateUtah
Size76,413 acres
Designated2019, by Congress
Center point39.03° N, 110.53° W
Night skyVery dark ground, a faint glow at most (Black Marble reading 29)

Boundary map

2 outlines

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 Mexican Mountain Wilderness20°30°40°50°60°70°80°January: 0.63 inches of precipitation, 5.5 inches of snowFebruary: 0.64 inches of precipitation, 3.3 inches of snowMarch: 0.59 inches of precipitation, 1.4 inches of snowApril: 0.54 inches of precipitation, 0.2 inches of snowMay: 0.72 inches of precipitation, 0.0 inches of snowJune: 0.45 inches of precipitation, 0.0 inches of snowJuly: 0.59 inches of precipitation, 0.0 inches of snowAugust: 0.92 inches of precipitation, 0.0 inches of snowSeptember: 1.03 inches of precipitation, 0.0 inches of snowOctober: 0.97 inches of precipitation, 0.1 inches of snowNovember: 0.46 inches of precipitation, 1.2 inches of snowDecember: 0.47 inches of precipitation, 4.9 inches of snowJanFebMarAprMayJunJulAugSepOctNovDecJanuary: 25.1°F averageFebruary: 31.5°F averageMarch: 41.5°F averageApril: 48.2°F averageMay: 57.0°F averageJune: 66.1°F averageJuly: 72.7°F averageAugust: 70.4°F averageSeptember: 62.0°F averageOctober: 49.9°F averageNovember: 36.5°F averageDecember: 26.1°F average0 in2 in4 in6 inTemp °FInches
The line is the average temperature and the bars are average precipitation at Castle Dale, 29 miles from the center point at 5,629 feet, station USC00421214 in the NOAA monthly climate normals for 1991 to 2020. Precipitation totals about 8 inches a year. The dotted line is average snowfall, about 17 inches a year on the same inches scale.

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 →

None of the 4 federal campgrounds within ten miles sit inside the boundary. Nearest first. Distances are from the campground point to the boundary edge, from the Campsite Atlas index.

Fire nearby

Within 50 miles · as of 2026-11-01
  • Wildfire
    Slough Canyon

    40 mi from the center point · 4,774 acres · 95% 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 · 3 in all · Register Atlas

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

Guidebooks for Utah

We earn a small commission if you buy through these links. It does not change what we list.

  • Hiking from here to Wow: Utah Canyon Country
    Kathy Copeland, 2018
    Find at Bookshop.org
  • Hiking Utah's high Uintas
    Jeffrey Probst, 2016
    Find at Bookshop.org
  • 100 classic hikes Utah
    Julie K. Trevelyan, 2016
    Find at Bookshop.org
  • Best Easy Day Hikes Canyonlands And Arches National Parks
    Bill Schneider, 2023
    Find at Bookshop.org
  • 60 Hikes Within 60 Miles: Salt Lake City
    Greg Witt, 2019
    Find at Bookshop.org

Titles come from Open Library's catalog, matched by subject heading or by title.

Reference

Questions people ask

How big is Mexican Mountain Wilderness?

76,413 acres.

Source: Wilderness Connect

Who manages Mexican Mountain Wilderness?

The Bureau of Land Management.

Source: Wilderness Connect

What state is Mexican Mountain Wilderness in?

Utah.

Source: Wilderness Connect

When was Mexican Mountain Wilderness designated?

Congress designated it in 2019.

Source: Wilderness Connect

Can I camp at Mexican Mountain Wilderness?

Camping inside a wilderness is usually allowed away from roads, with no facilities, and the managing agency page has the permit rules. The federal campgrounds within ten miles are listed under Where to camp.

Source: Where to camp

How do I get to Mexican Mountain Wilderness?

A point inside the boundary is at 39.027° N, 110.532° W. The official page carries directions and the office address.

Source: Wilderness Connect

Is there a fire near Mexican Mountain Wilderness right now?

1 active incident within 50 miles as of 2026-11-01, the nearest Slough Canyon at 40 miles. Distance is to the reported incident point, not the fire edge.

Source: Fire nearby

Are there historic places near Mexican Mountain Wilderness?

The National Register has 3 listings within 15 miles, including San Rafael Bridge and Denver and Rio Grande Lime Kiln.

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.