Granodiorite and two-mica granite.

Granodiorite and granite containing biotite, commonly with muscovite; includes bulk of Atlanta lobe (85-67 Ma) and isolated plutons in northern Idaho (107-67 Ma). (Paleocene and Cretaceous Idaho Batholith and Older Cretaceous and Jurassic Intrusive Rocks).
State Idaho
Name Granodiorite and two-mica granite.
Geologic age Cretaceous
Lithologic constituents
Major
Igneous > Plutonic > Granitic > Granite (Batholith, Pluton)Granodiorite and granite containing biotite, commonly with muscovite.
Igneous > Plutonic > Granitic > Granodiorite (Batholith, Pluton)Granodiorite and granite containing biotite, commonly with muscovite.
References

Lewis, Reed S., Link, Paul K., Stanford, Loudon R., and Long, Sean P., Geologic Map of Idaho, 2012, Idaho Geological Survey, Geologic Map 9 (M-9); Scale 1:500,000.

NGMDB product
Counties Ada - Blaine - Boise - Bonner - Boundary - Camas - Custer - Elmore - Gem - Idaho - Latah - Lemhi - Owyhee - Shoshone - Valley