1958 Map of Boulder City NW

About this map

Alunite (Site) stands as a focal point of industrial history near the junction of the McCullough Range and the River Mountains. During the late 1950s, this desert landscape was defined by its mineral extraction and transportation corridors, specifically the Union Pacific railroad winding through Railroad Pass. The map details the transition from the high ridges of Dutchman Pass down into the sweeping Eldorado Valley (Depression), where a prominent Dry Lake dominates the southern basin. Local mining operations are clearly marked, including the Quo Vadis Mine and the Blue Quartz Mine, alongside the expansive Boulder City Municipal Area boundary. The surveying provides a precise look at the infrastructure supporting these remote desert outposts, from pipelines to the specific shafts and tunnels of the Alunite Mine.