1978 Map of Diablo Canyon West

About this map

Smith Mesa dominates this West Texas landscape, surrounded by a complex system of drainage channels and cattle-rearing infrastructure. The map reflects the arid climate of the late 1970s, where water management is centralized around features like Alamo Reservoir No 1, Milner Lake, and named catchments including Prince Albert Tank and Camp Rice Tank. The terrain transitions from the elevated Finlay Mountains in the south toward the winding Arroyo Alamo and Alamo Canyon in the north. Settlement is sparse, represented by the Wilkey Ranch and the isolated Landing Strip, suggesting a region primarily utilized for large-scale ranching. The intricate network of seasonal watercourses like Camp Rice Arroyo and Diablo Arroyo provides a look at the natural erosion patterns across the desert flats.