Marble Mountain is a great peak among many situated in the heart of the Sangre de Cristo range. The peak is easy to identify as it flanks the south side of South Colony Creek Valley and Humboldt Peak. The route is a standard out and back, through old growth forest, alpine tundra and finally some talus toward the summit.
Marble Mountain is a rather benign peak compared to its fourteener neighbors and offers a relatively moderate run/hike to the summit in an area surrounded by difficult mountains. The route begins at the Grape Creek Trailhead, up Music Pass Road and connects to the Music Pass Trail through an old growth conifer forest, followed by a final summit push of alpine tundra and talus. The mountain also offers a good winter climb due to virtually non-existent avalanche danger via the northeast ridge.
Elevation: 13,266 ft
Rank: 427th highest peak in Colorado
Prominence: 526 feet
USGS Quad: Crestone Peak
Additional Data: https://www.summitpost.org/marble-mountain/153343