2020 Map of Vinson Wash

About this map

The Grand View Irrigation District Canal cuts across the northeastern corner of this Owyhee County landscape, signaling the vital role of water management in this arid Idaho environment. The terrain is defined by a network of drainage features, most notably the namesake Vinson Wash and McKeeth Wash, which carve through the high desert floor toward the Snake River valley beyond this sheet. To the east, the broad expanse of Twentymile Flat offers a shift in topography compared to the more dissected areas near Poison Gulch. Man-made infrastructure is sparse but evocative of the region's diverse history, with Missile Base Rd and Mud Flat Rd providing the primary access through these sections. These roads, along with Good Rd and Riverside Rd, trace the movement of ranching and utility interests across the public and private lands of the Owyhee front.