Divided into the newly named: 1) Windy Ridge Formation of Early Permian? age at base; 2) Hunsaker Creek Formation of Early Permian, Leonardian or early Guadalupian age; 3) Wild Sheep Creek Formation of Middle (Ladinian) and Late (Karnian) Triassic age; and 4) Doyle Creek Formation of Late (Norian) Triassic age. Kurry Creek Member named as upper member of Doyle Creek Formation near Pittsburgh Landing, west of Whitebird, Idaho Co, ID, Idaho Mountains province. [Relationship of new member to rest of Doyle Creek not stated.] Occurs also in Snake River and in Eastern Columbia basins. Correlated with Clover Creek Greenstone. Geologic map. Stratigraphic column.

Source: GNU records (USGS DDS-6; Denver GNULEX).

Seven Devils divisible into two map units: 1) Hunsaker Creek (Early Permian) or Windy Ridge (Early Permian?) Formation; and 2) Doyle Creek Formation (Late Triassic) in a small area on east side of Salmon River; is not divisible on west side of Salmon River. These areas are in Idaho Co, ID, Idaho Mountains province, where they are part of the Wallowa terrane. Medium- and high-grade metamorphosed volcanic rocks east of the Salmon River area mapped as metamorphic units whose relative age and correlation are unknown; these rocks are tentatively correlated with the Seven Devils; they are shown as Permian and Triassic age; these rocks are also mapped as part of the Wallowa terrane; some are in the Rapid River plate and some are in the North Fork plate. These metamorphosed rocks were assigned to the Riggins Group (and its Squaw Creek and Lightning Creek Schists, Berg Creek Amphibolite, and Fiddle Creek Schist). The Riggins and its component formations are not recognized in the area of this study. Upper contact of Doyle Creek with Martin Bridge Formation (revised, redescribed) gradational. Lower part intruded by a gneissic quartz diorite pluton which has an emplacement age of 259 Ma.
[NOTE: The Department of the Interior's Secretarial Order 3404, issued on November 19, 2021, formally identifies the term “squaw” as derogatory. That Order will create a federal Derogatory Geographic Names Task Force, to find replacement names for geographic features in use by federal agencies. We’re awaiting guidance from the Task Force, and will then take the appropriate actions.]

Source: GNU records (USGS DDS-6; Denver GNULEX).