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1949 Map of Palomar Observatory

Name: 1949 Topographic Map of Palomar Observatory
Creator: U.S. Geological Survey
Published: 1968
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1968

About this map

Palomar Observatory stands as the defining landmark of this mountainous terrain in northern San Diego County, featuring the world-renowned Hale Telescope (200-inch), the 48-inch Telescope, and the 18-inch Telescope. The high-altitude landscape of Palomar Mountain is crisscrossed by essential mountain infrastructure including the Observatory Truck Trail and the High Point Truck Trail.

South of the astronomical facilities, the map details the rugged transitions into the La Jolla Indian Reservation and the Cleveland National Forest. Settlements and social hubs like La Jolla Amago and Palomar Park are situated near expansive valleys such as Mendenhall Valley and Dyche Valley. The presence of the Ware Mine and the Maple Lode Mine (Inactive) on the slopes of Aguanga Mountain reflects the region's mid-century mining legacy, while the San Luis Rey River drains the southern slopes.