2010 Map of Castolon OE S

About this map

Santa Elena Crossing serves as the primary focal point of this border survey, marking a historic point of passage across the Rio Grande. Situated where the international boundary separates the United States of America from Estados Unidos Mexicanos, the map highlights the sparse infrastructure of this desert corridor. The unpaved route of River Rd W follows the northern bank of the river, providing the only significant access through this arid landscape. This map captures the remote character of the Big Bend region, where the river's path is the defining geographic and political feature, long before modern fencing or extensive development altered the visual landscape of the international line.