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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.
Maps
Digital and paper maps are critical tools for wilderness visitors. Online maps can help you plan and prepare for your visit ahead of time. You can also carry digital maps with you on your GPS unit or other handheld GPS device. Having a paper map with you in the backcountry, as well as solid orienteering skills, however, ensures that you can still route-find in the event that your electronic device fails.
Online Maps
Printed Maps
Rules & Regulations
Motorized equipment and equipment used for mechanical transport is generally prohibited in all wilderness areas.
This includes the use of motor vehicles, motorboats, motorized equipment, bicycles, hang gliders, wagons, carts, portage wheels, and the landing of aircraft including helicopters.
Wilderness-Specific Regulations
Learn more about
why regulations may be necessary in wilderness.
Applicable Wilderness Law(s)
Want to Volunteer for Wilderness?
Citizens who volunteer their time to steward our wilderness areas are an essential part of wilderness management. Contact the following groups to inquire about volunteer opportunities.