1958 Map of Boulder City NW

About this map

Railroad Pass serves as the central hub for this late-1950s landscape, where infrastructure and mining converge in the high desert of Clark County. The Union Pacific railroad cuts through the mountains, navigating a series of tunnels and shafts that reflect the industrial activity near the Alunite (Site). This area is a critical corridor between the McCullough Range and the River Mountains, marked by several isolated extraction points like the Blue Quartz Mine and the Quo Vadis Mine. To the south, the topography descends into the Eldorado Valley (Depression), terminating at the seasonally arid expanse of Dry Lake. The map illustrates the early development of the Boulder City Municipal Area Boundary, showing how early transportation routes and resource extraction sites defined the regional geography before modern expansion.