1950 Map of Palomar Observatory

About this map

Palomar Observatory dominates the high elevations of Palomar Mountain in this 1950 survey, showcasing the site of the world-renowned Hale Telescope (200-inch) and its supporting 18-inch counterpart. The rugged topography of the Cleveland National Forest is deeply etched by the West Fork San Luis Rey River and numerous canyons, while the La Jolla Indian Reservation occupies the southwestern terrain. Settlement is sparse, represented by mountain camps like Crestline Camp and the small community of La Jolla Amago. Evidence of local mineral interests appears on the eastern slopes of Aguanga Mountain, where the Ware Mine and the inactive Maple Lode Mine are located. High-altitude meadows such as Mendenhall Valley and Pedley Valley contrast with the steep ridges leading to High Point, where a lookout once surveyed the expansive San Diego County backcountry.