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

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

Bag two peaks on this 9-mile, fido-friendly loop around Boulder's signature Flatirons.

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.

Hike into the core of Indian Peaks Wilderness on this 13.6-mile overnight, which leads past waterfalls to a sunbleached valley and a sweet lakeside campsite.

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.

Wander through lush forests and high-alpine meadows to a pair of secluded mountain lakes nestled at the foot of the Mummy Range.

Connect subalpine waterfalls, gurgling creeks, and overlooks above Wild Basin on this 5.3-miler in Rocky Mountain National Park.

Amble along rushing creeks, waterfalls, and lichen-covered rock outcroppings on the way to a secluded alpine lake in Rocky Mountain National Park's Wild Basin.

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.