1955 Map of Adobe Mountain

About this map

El Mirage Valley dominates this high desert landscape, captured here in the mid-1950s with later updates reflecting the area's development. The map follows the stark boundary between Los Angeles and San Bernardino counties, where an emerging grid of desert roads like Avenue G and El Mirage Road begins to define the territory. The topography is anchored by prominent elevations including Adobe Mtn, Nash Hill, and Gray Mtn, providing orientation points for early desert navigators. Significant for local historians and land researchers, the map identifies several Prospects and a specific Prospect, indicating the area's small-scale mining activity. Several small Landing Strips and a strategically placed Water Tank speak to the logistical challenges and aviation-centric growth of this arid region during the mid-century period.