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1904 Map of Pomona

Name: 1904 Topographic Map of Pomona
Creator: U.S. Geological Survey
Published: 1941
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1941

About this map

The San Gabriel Mountains loom over a burgeoning agricultural and transit landscape at the turn of the century. Settlements like Azusa, Glendora, and Covina are firmly established along the base of the range, supported by vital water infrastructure like the Azusa Ditch and Covina Canal. The transit network is particularly dense for the era, featuring the Atchison Topeka and Santa Fe and the Southern Pacific railroads, which helped facilitate the region's citrus and ranching economy.

Down in the valley, the map reveals smaller or renamed locales such as Lordsburg, Alosta, and Spadra, providing a clear record of early Los Angeles County geography. The southern reaches are defined by the Puente Hills and the winding course of San Jose Creek, while the northern portion remains largely protected within the San Gabriel National Forest, featuring many named landmarks like Monrovia Peak and Silver Mt.