2012 Map of Twelvemile Knoll

About this map

The California-Oregon Trl cuts across the northern reaches of this high-desert landscape in Sweetwater County, marking a historic corridor of western migration that remains etched into the modern topography. This 2012 survey by the U.S. Geological Survey illustrates the intersection of deep historical transit and contemporary land management, where the ancient trail parallels and intersects a network of utilitarian routes including 18 Mile Rd and Blm Road 4204. Rising above the surrounding drainage patterns is the prominent Twelvemile Knoll, which serves as a primary navigational landmark in an otherwise open and sparse terrain. The map's detailed contouring reveals the subtle draws and ridges that defined the journey for early travelers and continue to dictate the placement of today’s Bureau of Land Management infrastructure.