2012 Map of Castolon OE S

About this map

Rio Grande waters define the northern edge of this sparse borderland terrain, marking the international boundary in the high desert. The landscape is characterized by a dense network of intermittent drainages and arroyos that feed toward the river valley from the south. Cultural features are extremely limited in this arid environment, centered primarily on the historic Santa Elena Crossing, a location that has long served as a vital point of passage across the river. Access to this remote stretch is provided by the unpaved River Road W, which skirts the river's path, connecting the crossing to the broader region. The lack of permanent settlements or structures on this 2012 survey highlights the preservation of the area's primitive character along the Texas-Chihuahua border.