USFS · New Mexico

Pecos Wilderness

Deep and narrow canyons, long and broad mesa tops, heavily forested slopes, and rugged ridges with peaks above timberline characterize the Sangre de Cristo Mountains of the Pecos Wilderness. This small mountain chain comprises the extreme southern extent of the Rocky Mountains, North America's longest mountain chain, which extends north all the way into Canada. On the western side steep canyons drain toward the Rio Grande. In contrast, to the east lies the relatively gentle upper Pecos River Valley, an area of broad flat mesas and grassy meadows. The high country elevations range from 8,400 feet to 13,103 feet atop South Truchas Peak, the state's second highest point.

Description from Wilderness Connect (wilderness.net).

Official page at Wilderness Connect ↗
Pecos Wilderness
Photo from Wilderness Connect, wilderness.net
DesignationWilderness
Managed byU.S. Forest Service
StateNew Mexico
Size221,796 acres
Designated1964, by Congress
Center point35.89° N, 105.64° W
Night skyAbout as dark as the ground gets (Black Marble reading 11)

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 Pecos Wilderness30°40°50°60°70°January: 0.96 inches of precipitation, 14.5 inches of snowFebruary: 1.46 inches of precipitation, 16.9 inches of snowMarch: 1.92 inches of precipitation, 22.9 inches of snowApril: 1.91 inches of precipitation, 15.8 inches of snowMay: 1.88 inches of precipitation, 2.3 inches of snowJune: 1.79 inches of precipitation, 0.0 inches of snowJuly: 4.68 inches of precipitation, 0.0 inches of snowAugust: 3.87 inches of precipitation, 0.0 inches of snowSeptember: 2.26 inches of precipitation, 0.0 inches of snowOctober: 1.63 inches of precipitation, 7.0 inches of snowNovember: 1.30 inches of precipitation, 11.0 inches of snowDecember: 1.28 inches of precipitation, 17.9 inches of snowJanFebMarAprMayJunJulAugSepOctNovDecJanuary: 31.3°F averageFebruary: 32.6°F averageMarch: 37.7°F averageApril: 42.9°F averageMay: 50.6°F averageJune: 59.2°F averageJuly: 61.7°F averageAugust: 60.2°F averageSeptember: 55.1°F averageOctober: 46.9°F averageNovember: 37.8°F averageDecember: 31.1°F average0 in5 in10 in15 in20 in25 inTemp °FInches
The line is the average temperature and the bars are average precipitation at Gascon, 11 miles from the center point at 8,250 feet, station USC00293488 in the NOAA monthly climate normals for 1991 to 2020. Precipitation totals about 25 inches a year. The dotted line is average snowfall, about 108 inches a year on the same inches scale. The station sits about 3,000 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 →

None of the 16 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.

Show 4 more

4 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 fishing. 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.

76 named Forest Service trails enter this wilderness, 486 miles in all. The 10 longest are listed here.

TrailMiles
Sky Line ↗63.4
Winsor ↗24.7
Borrego ↗20.6
Beattys ↗13.4
Middle Fork Santa Barbara ↗13.1
Beaver Creek ↗13
Hamilton Mesa ↗11.6
Las Trampas ↗11.6
Sierra Mosca ↗10.9
Rio Medio ↗10.4

Lengths and allowed uses come from the Forest Service trail layer by way of Trailhead Atlas. This trail list was copied from Trailhead Atlas on November 1, 2026 and is copied again on each weekly run. Trails in plain text have no page there yet.

Fire nearby

Within 50 miles · as of 2026-11-01
  • Prescribed
    Stone Angel Fall Rx

    48 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

National Register listings within 15 miles · 148 in all · Register Atlas

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

Guidebooks for New Mexico

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

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

Reference

Questions people ask

How big is Pecos Wilderness?

221,796 acres.

Source: Wilderness Connect

Who manages Pecos Wilderness?

The U.S. Forest Service.

Source: Wilderness Connect

What state is Pecos Wilderness in?

New Mexico.

Source: Wilderness Connect

When was Pecos Wilderness designated?

Congress designated it in 1964.

Source: Wilderness Connect

Can I camp at Pecos 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 Pecos Wilderness?

A point inside the boundary is at 35.895° N, 105.645° W. Pecos National Historical Park is 13 miles away. The official page carries directions and the office address.

Source: Wilderness Connect

Is there a fire near Pecos Wilderness right now?

1 active incident within 50 miles as of 2026-11-01, the nearest Stone Angel Fall Rx at 48 miles. Distance is to the reported incident point, not the fire edge.

Source: Fire nearby

Which national parks are near Pecos Wilderness?

Pecos National Historical Park (13 mi), Fort Union National Monument (23 mi) and Manhattan Project National Historical Park (24 mi). Park Atlas has fees, hours and alerts for each.

Source: Nearby on the other atlases

Are there historic places near Pecos Wilderness?

The National Register has 148 listings within 15 miles, including National Park Service Southwest Regional Office and Palace of the Governors.

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.