1904 Map of Pomona

About this map

Lordsburg and Alosta anchor a landscape of citrus-era growth at the base of the San Gabriel National Forest. Surveyed in the 1890s, this map captures the San Gabriel Valley before suburbanization, when irrigation from the San Gabriel River and numerous canyons like Big Dalton Canyon fueled the agricultural expansion of Covina, Azusa, and Glendora. The rail infrastructure is densely detailed, featuring the Atchison Topeka and Santa Fe and the Southern Pacific lines, which were vital for transporting regional produce. South of the main settlements, the terrain transitions into the Puente Hills and the ranching lands around Spadra and Puente. The map reveals the intricate network of washes, such as San Jose Wash and Walnut Creek, that dictated early road placement and property boundaries across the San Jose Addition.