1. Geologic map of the Nevershine Hollow area, eastern Black Mountains, southern Tushar Mountains and northern Markagunt Plateau, Beaver and Iron counties, Utah Yale Public content 1990. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey ; For sale by Map Distribution. English. Public. Utah, Beaver County, and Iron County.