2022 Map of Mesito Reservoir

About this map

The Rio Grande marks the western boundary of this landscape, winding through a steep-walled canyon known as The Box along the border between Conejos and Costilla counties. This arid high-desert terrain is characterized by isolated volcanic elevations including the Music Mesa, Brownie Hills, and the Fairy Hills. The northern section of the map reveals the starkly named Death Valley, while the southern reaches transition into a network of residential and agricultural plots defined by long, straight thoroughfares like Nance Blvd and Laura Rd. At the center of this drainage system lies the Mesito Reservoir, which collects water from Culebra Cr as it flows westward from the Sangre de Cristo foothills toward the river. The grid-like road system, featuring names like Margo Rd and Kelly Ave, suggests a planned but sparsely populated rural development pattern within the San Luis Valley.