1955 Map of Simpson Springs

About this map

Pony Express Route traces a historical path across this high-desert landscape in the mid-1950s, passing the Pony Express Historic Marker near the base of the Simpson Mts. This area serves as a critical water stop in a demanding environment, centered on the Simpson Springs and its associated Water Tank Simpson Springs. The map documents a rugged transition between the northern reaches of the Grassy Mountain and the expansive flats of the Dugway Proving Ground, which dominates the northwestern quadrant.