1954 Map of Allison

About this map

Allison and the surrounding high desert terrain are documented here just as the Navajo Reservoir began to transform the local landscape. Revisions from the early 1970s illustrate the impact of water management in this arid region, showing the inundation areas along the Piedra River and its confluence with the San Juan system. The presence of the Southern Ute Indian Reservation boundary and the Old Railroad Grade north of the state line reveals the historical layers of transit and land use in Archuleta County.