Eldorado Mountain

Eldorado Mountain is a summit in Boulder County that reaches approximately 8,344 feet above sea level. The peak features distinctive sandstone rock formations and is topped with radio transmission equipment serving the surrounding region.

The Crags Hotel operated on the mountain's slopes from 1908 until a fire destroyed it in 1913. Remnants of this early lodging structure remain visible today near the Rattlesnake Gulch Trail.

The mountain shares boundaries with multiple jurisdictions, including Boulder City, Boulder County, Eldorado Canyon State Park, and the Bureau of Land Management.

Reaching the summit involves following informal trails and being aware of property boundaries, particularly around the railroad tracks that cross the slope. Visitors should respect marked restrictions and check local access conditions before heading out.

The eastern flank features Mickey Mouse Wall, a distinctive rock formation with shapes resembling mouse ears when viewed from certain angles. This natural formation has become a local landmark that many climbers recognize and navigate by.

Location: Colorado

GPS coordinates: 39.91415,-105.29471

Latest update: December 12, 2025 08:01