Colorado

The Greenhorn Mountain Wilderness was designated by Congress in 1993 and it now has a total of 23,087 acres. Soaring dramatically from the plains of Colorado, Greenhorn Mountain rises from 7,600 to 12,347 feet in the center of the northern section. Its summit is the highest point in the Wilderness, and nowhere else in the state provides such a vivid and dramatic change from plains to mountains.

About two-thirds of the area is forested, and as you hike along, you'll pass quickly from dry oakbrush and ponderosa pine country (or pinion-juniper in some places) through aspen, fir, and spruce, and on to alpine tundra. Most of the east-facing slopes are steep, rocky, and generally bare. Unusual for Colorado, Greenhorn Mountain Wilderness has no lakes and no towering alpine peaks--and, consequently, few human visitors. Numerous small canyons and sharp ridges are the dominant geological features. A few streams descending from the mountain furnish a habitat for threatened greenback cutthroat trout. With relatively little snow, the area attracts bighorn sheep, elk, and mule deer.

Only 11 miles of trail cross the Wilderness, all in the northern half. The southern half, remote and rugged and waterless, probably has fewer human visitors than any other area of the state. If you're willing to brave the dense woodlands and rough topography, you'll find few places with as much solitude. Please help keep Wilderness wild by following Leave No Trace practices.

Greenhorn Mountain Wilderness
Zach Beauvais from Ludlow, Shropshire, United Kingdom, San Isabel View of Greenhorn Mountain, CC BY-SA 2.0
When Open? Area Acres Operated By
Year-round; 24 hours a day 23,087 acres US Forest Service:
San Carlos Ranger District
Dogs Allowed? Miles of Trail Max/Min Elev (ft)
Dogs allowed on leash 45 7,430ft - 12,350ft
Location overview of Greenhorn Mountain Wilderness / Spanish Peaks Wilderness Map

Greenhorn Mountain Wilderness Trail and Map Finder

Area Hiking Trails:
1 - Apache Falls Trail #1357
2 - Bartlett Trail #1310
3 - Bartlett Trail Alt
4 - Cisneros Trail #1314 - MOTORIZED
5 - Greenhorn Mountain Summit Trail - PRIMITIVE
Area Hiking Trails:
1 - Apache Falls Trail #1357
2 - Bartlett Trail #1310
3 - Bartlett Trail Alt
4 - Cisneros Trail #1314 - MOTORIZED
5 - Greenhorn Mountain Summit Trail - PRIMITIVE
6 - Greenhorn Trail #1316
7 - Santana Trail #1313 - PRIMITIVE
8 - South Apache Trail #1311
9 - Spur Trail
10 - Turkey Creek Trail #1315
Area Trailheads:
1 - Bartlett Trail #1310
2 - Cisneros Trail #1314 - MOTORIZED
3 - Greenhorn Trail #1316
4 - Greenhorn Trail #1316
5 - Santana Trail #1313
Area Campgrounds: