Salt Lake Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Neogene
 ....Salt Lake Formation
RTPliocene
 Miocene
 Idaho
 Utah
 Wyoming
 Nevada
SNSE Idaho, N Nevada, N Utah and W Wyoming. Also search Salt Lake Group NOT Hawaii. For formation in Hawaii, search Salt Lake Group AND Hawaii. Indexed with ages as applicable. Added to Thesaurus in 1989.