1. Seasonal changes in ground-water quality and ground-water levels and directions of ground-water movement in southern Elmore County, southwestern Idaho, including Mountain Home Air Force Base, 1990-1991 Yale Public content 1992. 2002-06-01T04:00:00Z. 2015-07-02T17:24:56Z. Geological Survey (U.S.). The Survey ; Copies may be purchased from Books and Open-File Reports Section. English. Public. Idaho, Elmore County, and Mountain Home Air Force Base.