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1901 Map of San Luis Rey

Name: 1901 Topographic Map of San Luis Rey
Creator: U.S. Geological Survey
Published: 1911
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1911

About this map

Oceanside and its neighboring coastal settlements of South Oceanside and Carlsbad anchor this coastal landscape at the turn of the century, where the Southern California Railway (Surf Line) traces the shoreline. Inland, the topography is defined by massive land grants and reservations, including the Temecula Indian Res and Pala Indian Res. The Santa Margarita River and San Luis Rey River carve through the Santa Margarita Mountains, providing the corridors for early development and ranching at sites like Home Ranch.

Regional transportation is dominated by the Santa Fe network, with the Fallbrook Branch reaching into the citrus-growing region of Fallbrook and the Escondido Branch terminating at the agricultural hub of Escondido. The map preserves the footprint of early San Diego County, showing scattered settlements such as Olivenhain, De Luz Sta., and Bonsall before the expansion of modern irrigation and suburbanization. Distinctive lagoons like Batiquitos Lagoon and San Elijo Lagoon mark a coastline still largely dominated by large ranches and open canyons.