1988 Map of Topaz Mountain West

About this map

Spor Mountain and the western reaches of the Thomas Range dominate this late-1980s landscape, revealing an intensive history of mineral exploration and extraction. The map document's focus is clearly industrial, marked by numerous prospect locations and extensive Open Pit Mines that dot the western slopes. Named operations like the Bell Hill Mine and the Yellow Chief Mine reflect the era's mining activity in this mineral-rich corridor of Juab County. Moving south from Eagle Rock Ridge and The Dell, the terrain transitions into the high desert basins of Horse Valley, framed by the volcanic outcrops of the Wildcat Hills. The presence of several Borrow Pit and Gravel Pit sites along the southern flats suggests a landscape shaped by both large-scale extraction and the maintenance of the sparse road networks that cross this arid expanse toward Topaz Mountain.