American Lake is a stunning alpine destination in the Maroon Bells-Snowmass Wilderness of Pitkin County, offering a challenging but deeply rewarding hike with views that rival its more famous neighbor, Maroon Bells. Fewer hikers choose this trail compared to the crowded Maroon Bells scenic area, which means you can expect lighter foot traffic and a more solitary mountain experience at the lake itself.
The trail to American Lake begins near the town of Ashcroft, south of Aspen, and covers approximately 3.5 miles one way with around 2,500 feet of elevation gain. Reviewers consistently describe the hike as strenuous, with sections of steep switchbacks and rocky terrain, but every one of them also says the views along the way and at the lake make the effort worthwhile. Plan for more time than the mileage suggests, because you will want to stop frequently to absorb the panoramic mountain scenery unfolding behind you as you climb.
The lake sits in a dramatic alpine cirque surrounded by towering ridgelines and scree fields. The water is surprisingly swimmable during August, with visitors reporting relatively warm temperatures compared to other high-altitude lakes in the Elk Mountains. Dogs are welcome on the trail and seem to enjoy the outing as much as their owners, based on the enthusiastic reviews from hikers who brought their four-legged companions.
Wildflower displays along the lower and middle sections of the trail peak in July, with fields of lupine, columbine, and alpine sunflowers lining the path. The upper section transitions to rocky alpine terrain with expansive views of the surrounding peaks and valleys. Fall brings golden aspen groves along the lower trail sections, making September hikes particularly photogenic.
Access to the trailhead requires driving to the ghost town of Ashcroft on Castle Creek Road. The road is paved and accessible to all vehicles. No permits are currently required, though the Maroon Bells-Snowmass Wilderness follows standard wilderness regulations including no mechanized equipment and a group size limit of 15. Start early to allow plenty of daylight for the round trip and to avoid afternoon thunderstorms that build regularly over the Elk Mountains during summer months.