1954 Map of Lisbon Valley

About this map

Lisbon Valley sits at the heart of this mid-century survey, a landscape defined by ranching and resource extraction along the Utah-Colorado border. Conducted in cooperation with the Atomic Energy Commission, the map details the infrastructure of a working high-desert territory, including numerous shafts, tunnels, and prospects scattered through the canyons. Human presence is anchored by Woods Ranch and Patterson Ranch in the lowlands, while West Summit School serves the rural population near Summit Point. The geography is marked by massive landforms like Island Mesa and Three Step Mesa, separated by a complex network of drainages such as Coyote Wash and Big Indian Wash. Noteworthy landmarks like Big Indian Rock and the narrow passage at Lisbon Gap provide clear navigational markers for those tracing historical land use or geological interests.