1959 Map of Cotton Thomas Basin

About this map

Mines and tunnels dominate the high ridges along the border of Utah and Idaho on this late 1950s survey. The landscape is defined by the extraction of minerals in the northern reaches, where the Vipont Mine and Skoro Mine are situated near a cluster of subterranean works, including the Phelan Tunnel and Harrison Tunnel. This remote high-desert terrain is marked by significant topographical landmarks like the Twin Peaks and the narrow passage at Devils Gate. Further south, the drainage patterns of Cotton Thomas Basin and Grouse Creek carve through the Grouse Creek Mountains, revealing a network of remote jeep trails that provided the only access to these isolated claims and summits like Beatty Mtn.