English Idaho Batholith Cited by user Thyermj on 20 Apr 2021 The Idaho Batholith is a granitic and granodioritic batholith of Cretaceous-Paleogene age that covers approximately of central Idaho and adjacent Montana.
English Idaho Batholith ecoregion Cited by user Cleveland13 on 12 Feb 2013 The Idaho Batholith ecoregion is a Level III ecoregion designated by the United States Environmental Protection Agency (EPA) in the U.S.