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.

Downtown and need a post-meeting fix? This heart-pounding 4.3-mile scramble in Apex Park gives new meaning to that old runner's high.

One of the Front Range's best hikes, this 10.1-mile point-to-point offers solitude, mountain views, and a couple of thigh-burning climbs.

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.

Hike rolling grassland punctuated by towering redrock formations to a ridge overlooking the Front Range on this 6-mile loop just minutes from the city.

An invigorating climb at the base of Lookout Mountain, this 5.4-mile lollipop loop follows a bustling creek into a forest thick with trees and elk.

This 10-mile loop in Hall Ranch begins with a stiff, sometimes technical, climb then speeds into rolling forestland and endless grassy meadows to an old ranch in the shadow of Longs Peak.

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.