1. Geologic map and sections of the Doublespring quadrangle, Custer and Lemhi Counties, Idaho [cartographic material] Yale Public content 1965. 2011-12-20T16:11:14Z. 2012-03-05T17:26:27Z. Mapel, W. J. (William Jameson), 1922-. The Survey. English. Public. Idaho, Custer County, Lemhi County, and U.S.