1932 Map of Moon Mtn

About this map

The Colorado River Indian Reservation dominates the landscape in this early 1930s survey, marking a significant tribal boundary along the Arizona-California border. Situated between the Colorado River to the west and the arid expanse of the La Posa Plain to the east, the terrain is defined by the sharp elevations of the Dome Rock Mountains and the distinct peak of Moon Mtn. Hardrock mining activity is evident in the mountain foothills, specifically at the Valenzuela Mine and the Mammoth Mine, suggesting a period of mineral exploration in this desert corridor. The path of Tyson Wash provides a natural drainage route through the basin, illustrating the geographic relationship between the river valley and the high desert interior during the governorship of Geo. W. P. Hunt.