1. Geologic map of the north ramp of the Exploratory Studies Facility at Yucca Mountain, Nevada, stations 3+60 to 4+25 meters [cartographic material] Yale Public content 1997. 2002-06-01T04:00:00Z. 2022-07-15T21:37:52Z. Geological Survey (U.S.). U.S. Geological Survey. English. cartographic image. Public. Nevada, Yucca Mountain, Yucca Mountain (Nev.), and Yucca Mountain.