2016 Map of Beckwith Arm

About this map

Falcon Reservoir dominates this South Texas landscape, where the waters of the impounded Rio Grande define the international boundary between the United States and Mexico. This survey illustrates the intricate, branching shoreline of the Beckwith Arm and the surrounding arid terrain of Zapata County. The map reveals a network of rural routes and ranch roads, such as Alejandrejas Rd and Cox Camp Rd, that navigate the ridges above Bronco Canyon. Inland water features like Juan Vela Lake and various smaller tanks punctuate the brush country, indicating the essential role of water management in this borderland environment. The topographic detail captures the transition from the high, dissected plateaus down to the submerged former river valley, providing a clear view of the region's geographic character before and after the reservoir's reach.