1939 Map of El Cajon

About this map

The San Diego River valley and its surrounding foothills define this late 1930s landscape, illustrating the transition from agricultural valley floors to the high granite peaks of the Cleveland National Forest. The map documents a diverse local economy through labels like the Edgemoor County Farm, the Daly Mine, and a local Quarry. Transportation networks are dominated by the San Diego and Arizona Eastern railroad and the convergence of routes 67 and 80 at El Cajon.