1986 Map of West of Drinkwater Lake

About this map

The Fort Irwin Military Reservation occupies a significant portion of this high desert terrain in the mid-1980s. This specialized survey focuses on a remote sector of San Bernardino County dominated by the Granite Mountains, which rise sharply from the basin floor. The landscape is characterized by its stark, undeveloped character, defined primarily by military boundaries and topographic relief rather than civilian settlement. Mapping at this scale reveals the intricate drainage patterns and ridge lines that dictate movement through this restricted government landscape. The absence of traditional towns or industrial infrastructure underscores the area's primary use as a training and maneuvers ground, where the natural landforms themselves become the defining landmarks of the territory.