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1948 Map of Boucher Hill

Name: 1948 Topographic Map of Boucher Hill
Creator: U.S. Geological Survey
Published: 1973
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1973

About this map

Palomar Mountain State Park and the surrounding high country define this rugged section of San Diego County, where the peak of Boucher Hill looks down upon a landscape deeply marked by early 20th-century land use and indigenous territory. The survey reveals a complex mosaic of boundaries, including the Mission Indian Reserve, Pauma Indian Res, and La Jolla Indian Reservation. These ancestral lands are dotted with historical sites like the St Bartholemew Cem and Indian Cem, alongside 1940s-era institutions such as the County Prison Camp and Happyland Sanitarium.

Deep in the canyons and along the San Luis Rey River, the map documents the infrastructure of a working landscape. Resource extraction is visible at the Mack Mine, Victor Mine, and Clark Mine, while the Escondido Canal and a Powerhouse indicate early water and power development. Small settlements like Rincon and Pauma Valley are captured at a mid-century moment, just as newer developments like the Pauma Valley Country Club and a small Landing Strip begin to appear in the valley floor.