1948 Map of Mesa Grande

About this map

Cleveland National Forest and the Santa Ysabel Indian Reservation define much of this 1940s landscape, where rugged gem mining and ranching shaped the local economy. The area is notable for its concentration of mineral wealth, including the Himalaya Mine, Esmeralda Mine, and San Diego Mine north of Mesa Grande. Near the settlement, the Mesa Grande Sch served as a focal point for the community, while the Mesa Grande Indian Res and neighboring Guejito land grant territory stretch across the western hills. To the northeast, the Lake Henshaw reservoir, fed by the San Luis Rey River, provides a major water feature in an otherwise arid terrain dominated by Black Mtn and Pine Mtn. This era shows the dependence on back-country access via the Mesa Grande Truck Road and Santa Ysabel Truck Trail for both resource extraction and fire management.