1. Gamma-ray composite-color maps of the Tushar Mountains and adjoining areas, Marysvale volcanic field, Utah [cartographic material] Yale Public content 1989. 2002-06-01T04:00:00Z. 2016-02-29T18:04:20Z. Geological Survey (U.S.). The Survey ; For sale by Map Distribution. English. Public. Utah and Tushar Mountains.