This 4.6-mile out-and-back climbs to a group of backcountry lakes tucked below the Continental Divide.

This easy trail passes through rolling grasslands and wetlands to a scenic highpoint overlooking the Front Range. Good for winter rides and cycle-cross training.

Rocky scrambles and a knife-edge ridge lead up one of the most challenging Fourteeners. Stellar views over the untamed Elk Range are endless.

Trek up sparsely-covered slopes and a broad talus ridge in the Sawatch Range to an overlook with endless alpine vistas.

This stiff but non-technical ascent leads to the highest point in Rocky Mountain National Park with unrivaled postcard views.

This 15.2-mile route runs over gemstone deposits of quartz and aquamarine to a rocky summit in the southern Sawatch Range.

Tour three 14,000-foot peaks (and one unranked 14er) on this loop in the Mosquito Range.

It's a scholarly debate on which summit--Mount Columbia or Mount Harvard--is the best. So reserve a long weekend to climb both in the Collegiate Peaks Wilderness, and decide for yourself.

This 11.2-mile hike strings together the five summits of Colorado's second-highest peak where supreme vistas open over a landscape of glacial till and alpine lakes.

Drawn-out switchbacks lead past jumbled boulder gardens and old mining ruins to a sweeping finale above the high tundra. Post-trip bonus: Soak in the steamy baths at Princeton Hot Springs.