1968 Map of Conchas Dam

About this map

The Conchas Reservoir dominates this landscape in San Miguel County, where the impounded waters of the Canadian River reach into deep sandstone canyons like Jose Maria Canyon and Boot Canyon. The map details the mid-century infrastructure supporting the dam, including the Conchas Dam Spillway and an intricate network of irrigation via the Conchas Canal and Bell Ranch Canal. Cultural remnants of the area's ranching and early settlement history are visible in labels for the Pablo Montoya Grant and the Alamosa Plaza Cem. At the southern end of the reservoir, the community of Hooverville and the Conchas Lake State Park (South Area) reflect the region's development into a recreational hub, further evidenced by the Cannon Air Force Base Recreation Area and various marinas. The terrain is marked by high mesas such as Aguilar Mesa and isolated features like Rattlesnake Island and Big Island.