1993 Map of Callao NE

About this map

Pony Express Route traces the southwestern corner of this landscape, marking a historic transit corridor through the desolate expanse of Snake Valley. The map reveals a highly specialized environment dominated by the sprawling Dugway Proving Ground, where the Military Reservation Boundary defines the transition between public lands and restricted military space. This 1993 revision, based on imagery from 1970, captures a terrain of shifting Sand Dunes and expansive Mud Flat areas, punctuated only by the seasonal drainage of Fish Springs Wash. The lack of permanent settlements emphasizes the region's role as a remote testing facility and a corridor for ancient and modern transport routes across the Great Basin.