BLM · Arizona

Mount Trumbull Wilderness

Just north of the Grand Canyon and Mount Logan Wilderness, located at the southern end of the Uinkaret Plateau, Mount Trumbull is a large, basalt-capped mesa rising from about 5,400 feet to 8,028 feet. Steep south and west slopes are dominated by piñon and juniper with cliff rose, manzanita, silktassel, and shrub live oak. You may see groves of aspen and Gambel oak with big sage, agave, and cactus lower down. On top of this plateau is a pristine forest of ponderosa pine that has never felt the logger's saw. Mule deer, Kaibab squirrels, coyotes, bobcats, mountain lions, jackrabbits, skunks, porcupines, big brown bats, and other smaller mammals inhabit the area. Wild turkeys, hawks, owls, and other birds are abundant.

Description from Wilderness Connect (wilderness.net).

Official page at Wilderness Connect ↗
Mount Trumbull Wilderness
Photo from Wilderness Connect, wilderness.net
DesignationWilderness
Managed byBureau of Land Management
StateArizona
Size7,880 acres
Designated1984, by Congress
Center point36.41° N, 113.13° W
Night skyAbout as dark as the ground gets (Black Marble reading 18)

Boundary map

1 outline

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

NOAA climate normals →
Weather by month near Mount Trumbull Wilderness30°40°50°60°70°80°January: 1.41 inches of precipitation, 0.3 inches of snowFebruary: 1.38 inches of precipitation, 2.1 inches of snowMarch: 1.06 inches of precipitation, 1.2 inches of snowApril: 0.66 inches of precipitation, 0.4 inches of snowMay: 0.52 inches of precipitation, 0.0 inches of snowJune: 0.19 inches of precipitation, 0.0 inches of snowJuly: 1.14 inches of precipitation, 0.0 inches of snowAugust: 1.30 inches of precipitation, 0.0 inches of snowSeptember: 1.06 inches of precipitation, 0.0 inches of snowOctober: 1.08 inches of precipitation, 0.0 inches of snowNovember: 0.55 inches of precipitation, 0.8 inches of snowDecember: 1.05 inches of precipitation, 1.0 inches of snowJanFebMarAprMayJunJulAugSepOctNovDecJanuary: 35.4°F averageFebruary: 39.2°F averageMarch: 45.9°F averageApril: 51.9°F averageMay: 61.3°F averageJune: 71.4°F averageJuly: 77.8°F averageAugust: 76.0°F averageSeptember: 68.2°F averageOctober: 55.9°F averageNovember: 44.1°F averageDecember: 34.5°F average0 in0.5 in1 in1.5 in2 in2.5 inTemp °FInches
The line is the average temperature and the bars are average precipitation at Pipe Spring NM, 38 miles from the center point at 4,920 feet, station USC00026616 in the NOAA monthly climate normals for 1991 to 2020. Precipitation totals about 11 inches a year. The dotted line is average snowfall, about 6 inches a year on the same inches scale. The station sits about 2,800 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 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

Within 50 miles · as of 2026-11-01
  • Prescribed
    Mt Trumbull Fuel Break Pile Rx

    3 mi from the center point

  • Prescribed
    Poverty Admin Site Rx

    25 mi from the center point

  • Prescribed
    Twin Point Piles Rx

    33 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

Guidebooks for Arizona

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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 Mount Trumbull Wilderness?

7,880 acres.

Source: Wilderness Connect

Who manages Mount Trumbull Wilderness?

The Bureau of Land Management.

Source: Wilderness Connect

What state is Mount Trumbull Wilderness in?

Arizona.

Source: Wilderness Connect

When was Mount Trumbull Wilderness designated?

Congress designated it in 1984.

Source: Wilderness Connect

How do I get to Mount Trumbull Wilderness?

A point inside the boundary is at 36.406° N, 113.129° W. Grand Canyon-Parashant National Monument is 28 miles away. The official page carries directions and the office address.

Source: Wilderness Connect

Is there a fire near Mount Trumbull Wilderness right now?

3 active incidents within 50 miles as of 2026-11-01, the nearest Mt Trumbull Fuel Break Pile Rx at 3 miles. Distance is to the reported incident point, not the fire edge.

Source: Fire nearby

Which national parks are near Mount Trumbull Wilderness?

Grand Canyon-Parashant National Monument (28 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.
  • 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.