1996 Map of Baldy Mesa

About this map

Baldy Mesa dominates the landscape of this High Desert transition zone, where the northern slopes of the San Gabriel Mountains meet the Mojave. The California Aqueduct carves a prominent engineered line across the terrain, illustrating the massive mid-century infrastructure required to transport water through the arid interior. This 1996 revision, based on updated aerial photography, reveals a region defined by scattered residential development and enduring agrarian footprints. Local history is anchored by a series of named ranch sites, including Yucca Forest Ranch, Patterson Ranch, and Warner Ranch, which speak to the area's pastoral roots. Significant portions of the southern quadrangle are protected within the San Bernardino National Forest, where the topography becomes increasingly complex as it rises away from the desert floor. The network of drainage features like Oro Grande Wash and White Wash underscores the seasonal hydrology of the mesa.