Hike to Mills Lake

Starting from the Glacier Gorge trailhead, you'll climb steadily through subalpine forest before the trees open up and the real show begins. The trail traces Alberta Falls early on — a worthwhile warm-up act — then follows Glacier Creek through a rocky corridor carved by ice thousands of years ago. The footing is mostly packed dirt with some boulder-hopping sections that keep things interesting without being technical. About halfway in, you'll cross a series of exposed granite slabs where the valley drops away below you, offering views that make the moderate elevation gain feel earned. The payoff is Mills Lake itself: a mirror-still alpine pool sitting at 9,940 feet, framed by the jagged spires of the Continental Divide. On a calm morning, Longs Peak reflects perfectly in the water. This is a trail built for hikers who want a real mountain experience without committing to an all-day sufferfest.