2015 Map of Delta Ranch

About this map

Delta Ranch and the small community of Dos Palos Y anchor this landscape in the heart of the San Joaquin Valley, where water management defines every acre. The complex network of irrigation and drainage is striking, with the San Joaquin River and Salt Slough winding through the northeast while engineered waterways like the Lone Tree Canal, Agatha Canal, and Colony Main Canal distribute water across the valley floor. The map reveals the meticulous grid of rural roads, such as Henry-Miller-Rd and Santa Fe Grade, which serve the expansive agricultural tracts. This 2015 edition captures the area's continued reliance on an intricate system of ditches and drains, including the Boundary Drain Number One and Toscano Ditch, illustrating how the Central Valley environment is fundamentally shaped by hydrologic engineering and large-scale ranching operations.