Hesperus Mountain or Hesperus Peak is the highest summit in the La Plata Mountains, a small subrange of the San Juan Mountains, which in turn are a subrange of the Rocky Mountains in Colorado, United States. Though not of particularly high elevation for the region, it is visually quite prominent, as it is near the southern edge of the San Juans.
Hesperus is notable as the Navajo People's Sacred Mountain of the North, Dibé Ntsaa, which marks the northern boundary of the Dinetah, their traditional homeland. It is associated with the color black, and is said to be impregnated with jet. When First Man created the mountain as a replica of mountains in the Fourth World, he fastened it to the ground with a rainbow and covered it in darkness.
Elevation : 13,232 ft (4,033 m)