Mount Zirkel Wilderness

Mount Zirkel Wilderness encompasses 160,505 acres of pristine backcountry in northern Colorado, straddling the Medicine Bow Range between the Routt and Medicine Bow National Forests. This remote alpine landscape features dramatic peaks exceeding 12,000 feet, over 50 alpine and subalpine lakes, and expansive wilderness valleys offering genuine solitude for backpackers seeking escape from developed areas. The terrain ranges from gentle meadow walks to challenging scrambles, with abundant wildlife including elk, mule deer, and bighorn sheep thriving in this protected ecosystem.

The wilderness is characterized by its rugged Continental Divide terrain, with Zirkel Peak (11,949 ft) and Mount Jackson (12,296 ft) providing dramatic focal points. Visitors will encounter diverse ecosystems from lodgepole pine forests at lower elevations to tundra and talus fields above treeline. Crystal-clear streams and lakes provide exceptional fishing opportunities for cutthroat and brook trout, while the lack of motorized access ensures a truly primitive experience. Weather can change rapidly at elevation, with afternoon thunderstorms common in summer months.

Access is primarily via several major trailheads offering multi-day backpacking loops and point-to-point routes. The Slavonia, Big Creek, and Seedhouse trailheads provide entry points for exploring different sections of the wilderness. Due to the remote nature and rugged terrain, proper preparation including topographic maps, water treatment, and bear-aware food storage is essential. The wilderness maintains a pristine condition through strict Leave No Trace principles—pack out all waste, camp on durable surfaces away from water sources, and respect the fragile alpine ecosystem.