2019 Map of Thompson Arroyo

About this map

The Comanche National Grassland dominates the southern landscape of this high plains region, where the drainages of the Thompson Arroyo and its tributaries have carved a complex network of ephemeral waterways. The terrain is defined by elevated features like Miller Mesa and the descent into Mixon Canyon, reflecting a landscape primarily utilized for ranching and conservation. Historical water management is evident through the path of the Old Otero Canal, which runs parallel to the Vandiver Arroyo near the northern boundary. The map illustrates a transition from the structured township and range system into the protected open ranges of the National Grassland. Sparse rural infrastructure, including CO Rd AA and CO Rd 35, provides the primary access points through this arid corridor along the border of Otero and Bent Counties.