Hike or ride smooth singletrack on this 7.2-mile lasso-loop, which climbs gently through rich scrubland and ponderosa forest to a killer mountainside overlook.

Cruise 5.2 miles along gentle foothills, Ireland-esque pastures, and past an old sawmill to a vista overlooking Boulder Canyon and the Front Range.

Quiet rules on this mostly off-trail, 5.1-mile scramble up a boulder strewn canyon to a gnarly rocky crown with panoramic mountain views in Pike National Forest.

Hike lonely trails filled with Yosemite-like granite formations in Lost Creek Wilderness on this 15.4-mile out-and-back up the Retirement Range's highest peak.

Test your endurance on this 5.6-mile loop that powers up Animas City Mountain to a remote mountain viewpoint and stellar mesa-edge views of downtown Durango.

Gaining 2,300 feet in just 2.6-miles, this out-and-back climbs the slopes of Engineer Mountain and rewards with high-altitude wildflowers and views of a rare rock glacier.

Sweeping views and a memorable elk-spotting traverse at 11,000 feet await on this 22.3-mile multi-day loop in the Rio Grande National Forest.

Ascend North America's tallest dunes for a day surrounded by alpine peaks, a desert valley, and shifting mountains of sand on this 6.6-mile loop in America's newest national park.

Thanks to only a little elevation gain, this 7-mile loop offers flatlanders great rewards (big views, wildlife, solitude) without much suffering. Pack plenty of water and sunscreen.

Follow this 9.9-mile loop through vibrant wildflower displays and past snow-fed streams to a huge alpine lake with unbeatable campsite views of Mount Meeker.