2012 Map of Mesa Grande

About this map

Mesa Grande and the surrounding high country of San Diego County are defined by a network of ranching corridors and rugged drainage basins in this 2012 survey. The northeastern corner is dominated by the waters of Lake Henshaw, where the San Luis Rey River enters the landscape. Much of the region is mapped through its remote access points, including the Lusardi Truck Trl and Mesa Grande Truck Trl, which connect the various valleys and peaks. Local infrastructure is sparse but notable, including the Loma Madera Ranch Airport and the Black Canyon Campground located near the southern margin. Notable landmarks such as Washtub Falls and Black Mountain Spring provide specific points of interest for those tracking water sources and historical recreation spots in this high-elevation terrain. Named family and ranching sites like Almond Ranch and Davis Ranch Rd offer clues to the enduring agricultural character of Temescal Valley and Organ Valley.