Carte topographique Great Sand Dunes National Preserve

Carte interactive

Cliquez sur la carte pour afficher l’altitude.

À propos de cette carte

Nom : Carte topographique Great Sand Dunes National Preserve, altitude, relief.

Lieu : Great Sand Dunes National Preserve, Saguache County, Colorado, United States (37.69603 -105.58080 37.95637 -105.42850)

Altitude moyenne : 2 792 m

Altitude minimum : 2 308 m

Altitude maximum : 4 128 m

In 1848, John C. Frémont was hired to find a railroad route from St. Louis to California. He crossed the Sangre de Cristos into the San Luis Valley in winter, courting disaster but proving that a winter crossing of this range was possible. He was followed in 1853 by Captain John Gunnison of the Corps of Topographical Engineers. Gunnison's party crossed the dunefield on horseback.[11]