Seven Devils Group.

Basaltic to rhyolitic (largely mafic) arc-derived volcanic and volcaniclastic rocks of the Wallowa terrane; includes minor limestone. Composed of Windy Ridge, Hunsaker Creek, Wild Sheep Creek, and Doyle Creek formations. (Mesozoic-Paleozoic Rocks of the Blue Mountains Island-Arc Complex).
State Idaho
Name Seven Devils Group.
Geologic age Triassic and Permian
Lithologic constituents
Major
Igneous > Volcanic > Mafic-volcanic > Basalt (Volcaniclastic)Basaltic to rhyolitic (largely mafic) arc-derived volcanic and volcaniclastic rocks of the Wallowa terrane.
Igneous > Volcanic > Felsic-volcanic > Rhyolite (Volcaniclastic)Basaltic to rhyolitic (largely mafic) arc-derived volcanic and volcaniclastic rocks of the Wallowa terrane.
Minor
Sedimentary > Carbonate > Limestone (Bed)
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 Adams - Idaho - Lewis - Nez Perce