1930 Map of Aguila Mountains

About this map

The Aguila Mountains rise as the central topographical focus of this Yuma County landscape, surrounded by the expansive sweep of the San Cristobal Valley. Surveyed in 1927 by Bishop Moorhead and C.N. Mortenson, the map documents a sparse desert environment where infrastructure is minimal and open space predominates. The Yager Road cuts a diagonal path through the valley floor, providing a primary line of travel across the arid terrain. To the north, the Aztec Hills stand at the periphery of a vast Unsurveyed Area, reflecting the remoteness of the region during the early twentieth century. This survey, published by the U.S. Geological Survey in cooperation with the State of Arizona State Water Commissioner, captures the area before modern desert development, highlighting the natural drainage patterns and elevation markers that defined this section of the Arizona desert.