Sedimentary rocks (Ordovician and Cambrian).

Marine limestone, dolomite, and subordinate shale and sandstone of Cambrian carbonate bank of southeast Idaho stratigraphically up to St. Charles Formation and Ordovician Garden City Limestone. Includes Bayhorse succession (Cash Creek Quartzite, Garden Creek Phyllite, Bayhorse Dolomite, Ramshorn Slate, and Clayton Mine Quartzite) of Clayton area and Pioneer Mountains; quartzite of Kamiak Butte north of Moscow; and Cambrian Gold Creek quartzite, Rennie Shale, and Lakeview Limestone east of Bayview. (Paleocene to Neoproterozoic Sedimentary and Igneous Rocks of the Cordilleran System).
State Idaho
Name Sedimentary rocks (Ordovician and Cambrian).
Geologic age Ordovician and Cambrian
Lithologic constituents
Major
Sedimentary > Carbonate > Dolostone (Bed)Marine dolomite.
Sedimentary > Carbonate > Limestone (Bed)Marine limestone.
Minor
Sedimentary > Clastic > Mudstone > Shale (Bed)
Sedimentary > Clastic > Sandstone (Bed)
Incidental
Metamorphic > Metasedimentary > Metaclastic > Quartzite
Metamorphic > Metasedimentary > Metaclastic > Slate
Metamorphic > Metasedimentary > Metaclastic > Phyllite
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.

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Counties Bannock - Bear Lake - Bingham - Blaine - Bonner - Bonneville - Caribou - Custer - Franklin - Kootenai - Latah - Oneida - Power - Teton