Hesperus Mountain, Sacred mountain peak in Montezuma County, United States.

Hesperus Mountain is the highest summit of the La Plata Mountains, a range of the Rocky Mountains, in San Juan National Forest, Montezuma County, southwestern Colorado. The peak rises to 13,237 feet (4,035 m) and stands over 7,000 feet (2,100 m) above the surrounding area. Its upper slopes are pale gray rock streaked with snow, broken into horizontal bands and ledges, while the lower flanks are darker gray and brown stone with faint green patches and long diagonal ridges. Dark evergreen trees stand along the bottom edge.

Hesperus Mountain is Dibé Ntsaa, the Sacred Mountain of the North that marks the northern boundary of Dinetah, the Navajo homeland. The San Juan Mountains were the traditional homeland of the Ute, and the La Plata Range was also an early homeland of the Navajo, who settled on and near the mountain.

The mountain holds deep meaning in Navajo tradition as the Sacred Mountain of the North, a place woven into stories and spiritual beliefs. Local communities recognize it as a landmark that anchors their connection to this high desert landscape.

The summit lies 13.2 miles (21.2 km) northeast by east of Mancos, inside San Juan National Forest, and is the highest point in Montezuma County. The peak rises over 7,000 feet (2,100 m) above the surrounding land, so the upper slopes hold snow while the lower flanks stay bare. Approach from the Mancos side; the final ledges are exposed rock.

The mountain rises dramatically, standing more than 7,000 feet (2,100 meters) above the surrounding landscape. This striking elevation difference makes it visible as a reference point from vast distances across the region.