USFS · Wilderness area · Colorado

Ptarmigan Peak Wilderness

The Williams Fork Mountains leap up and away into Ptarmigan Peak Wilderness from just below the western entrance to the Eisenhower Tunnel on Interstate 70, virtually unnoticed in winter as skiers rush...

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

Official page at Wilderness Connect ↗
Ptarmigan Peak Wilderness
Photo from Wilderness Connect, wilderness.net
DesignationWilderness
Managed byU.S. Forest Service
StateColorado
Size12,615 acres (Wilderness Connect)
Designated1993, by Congress
Center point39.7062, -106.0420
Night skyAbout as dark as the ground gets (Black Marble reading 19)

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.

Where to camp

Campsite Atlas →

No federal campground sits inside the boundary. 15 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

3 more within ten miles are not listed here.

Fire nearby

Within 50 miles · as of 2026-09-17
  • Wildfire
    Willow

    39 mi from the center point · 7,389 acres · 80% 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 · 16 in all · Register Atlas

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

Reference

Questions people ask

How big is Ptarmigan Peak Wilderness?

12,615 acres.

Source: Wilderness Connect

Who manages Ptarmigan Peak Wilderness?

The U.S. Forest Service.

Source: Wilderness Connect

What state is Ptarmigan Peak Wilderness in?

Colorado.

Source: Wilderness Connect

When was Ptarmigan Peak Wilderness designated?

Congress designated it in 1993.

Source: Wilderness Connect

Can I camp at Ptarmigan Peak Wilderness?

No federal campground sits inside the boundary. The nearest is Columbine Landing Recreation Site, 2.1 miles out. 15 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 Ptarmigan Peak Wilderness?

A point inside the boundary is at 39.706, -106.042. The official page carries directions and the office address.

Source: Wilderness Connect

Is there a fire near Ptarmigan Peak Wilderness right now?

1 active incident within 50 miles as of 2026-09-17, the nearest Willow at 39 miles. Distance is to the reported incident point, not the fire edge.

Source: Fire nearby

How dark is the night sky at Ptarmigan Peak Wilderness?

NASA’s Black Marble night-lights image reads 19 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 Ptarmigan Peak Wilderness?

16 National Register listings within 15 miles, including Georgetown Schoolhouse and Slate Creek Bridge.

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.