1954 Map of Mt Peale 4 NW

About this map

Big Indian Valley and Lisbon Valley dominate this high-desert terrain in San Juan County, captured during a mid-1950s preliminary survey. The landscape is defined by deep drainages and dramatic geological features, such as Three Step Hill and the prominent Big Indian Rock. The presence of a Mine in the southeast corner near Lower Lisbon Valley points to the early uranium and mineral exploration that shaped this region's mid-century history. Water sources are scarce but critical, marked by several Stock Ponds and the isolated Lisbon Spring. The map traces the intricate contours of Lisbon Canyon and Middle Mesa, illustrating a topography of erosion where East Coyote Wash and Indian Wash have carved into the plateau.