Hike to Chasm Lake

You start at the Longs Peak Trailhead already gasping a bit at 9,400 feet, then spend the next four miles gaining nearly 2,400 vertical feet — a relentless climb that earns every inch of the payoff. The first stretch winds through subalpine forest, dark and quiet, before the trees thin out and you step onto exposed alpine tundra where the wind has opinions. The final approach involves scrambling over talus and navigating a narrow ledge section that will get your attention. Then Chasm Lake appears — a dark, impossibly still pool sitting in a granite amphitheater directly beneath the Diamond, Longs Peak's iconic sheer east face rising 2,500 feet straight up. The scale is staggering, like standing at the bottom of a skyscraper made of rock. This trail rewards fit hikers who want a taste of Longs Peak's grandeur without committing to the full 15-mile summit push.