Figure 2. Generalized geologic map of the Caetano and Fish Creek Mountains calderas, showing distribution of the Caetano Tuff and tuff of Cove Mine and geochemical and geochronologic samples of this study. Geology modified from digital county geologic maps (Hess and Johnson, 1997) based on geologic maps for Lander, Churchill, Pershing, Humboldt, and Eureka Counties. CH—Cortez Hills deposit; CLV—Carico Lake Valley; GC—Golconda Canyon; HC—Horse Canyon mine; RM—Red Mountain; TYR—Toiyabe Range; WP—Wilson Pass.