2022 Map of Alamo Spring

About this map

Arid drainage networks define the landscape of the Presidio county backcountry, where the intermittent flow of Alamito Cr serves as a primary topographic anchor. This 2022 survey documents the sparse infrastructure of the Big Bend region, centered on the intersection of Hwy 169 and Casa Piedra Rd. The map illustrates a complex system of dry washes and canyons, including Cienega Cr and Black Hills Creek, which illustrate the natural erosion patterns typical of the Trans-Pecos desert. Smaller features like Arroyo Monias and Tortolo Cr further detail the local hydrology. This modern study provides an essential record of the contemporary road network and drainage basins in a region where natural watercourses have historically dictated settlement and transit routes.