Metamorphic rocks.

Pend Oreille granodiorite gneiss near Priest River (~2650 Ma); schist, gneiss, and subordinate quartzite along North Fork Clearwater River; Kelly Creek granite gneiss northeast of Pierce (~2670 Ma); orthogneiss in Pioneer Mountains (~2600 Ma and 695 Ma); granite gneiss, granite, schist, and amphibolite of Green Creek complex in Albion Mountains (~2600 Ma); granite gneiss in Beaverhead Mountains east of Leadore (~2450 Ma); and marble, quartzite, schist, and amphibolite of uncertain age near Henrys Lake. (Mesoproterozoic to Archean Basement Rocks).
State Idaho
Name Metamorphic rocks.
Geologic age Paleoproterozoic and Archean
Lithologic constituents
Metamorphic > Amphibolite
Metamorphic > Metaigneous > OrthogneissPend Oreille granodiorite gneiss. Kelly Creek granite gneiss. Orthogneiss in Pioneer Mountains. Granite gneiss of Green Creek complex in Albion Mountains. Granite gneiss in Beaverhead Mountains.
Metamorphic > Schist
Metamorphic > Metasedimentary > Metacarbonate > Marble
Metamorphic > Metasedimentary > Metaclastic > Quartzite
Igneous > Plutonic > Granitic > Granite

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 Bonner - Cassia - Clearwater - Custer - Fremont - Lemhi - Shoshone