1959 Map of Borrego Sink

About this map

Borrego Valley is shown during a period of transition as desert agriculture and recreational aviation began to shape the landscape of eastern San Diego County. The map documents the layout of Borrego Springs alongside early infrastructure like the Ensign Ranch Air Strip and Borrego Air Ranch, reflecting the mid-century rise of desert tourism. To the east, the natural depression of the Borrego Sink serves as a focal point for the surrounding Badlands, while the southern portion of the quadrangle is dominated by the steep terrain of the Vallecito Mountains and Yaqui Ridge. Detailed road networks, including the Old Borrego Valley Road and numerous Jeep Trails, trace the routes through Anza-Borrego Desert State Park to landmarks such as the Tamarisk Grove Campground and the geological formation at The Narrows.