State | Idaho |
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Name | Sedimentary rocks and sediments. |
Geologic age | Oligocene and Eocene |
Lithologic constituents | Major
Unconsolidated (Fluvial, Lacustrine)Fluvial and lacustrine deposits. Pass Creek Gravel, Wet Creek Gravel, and Donkey Fanglomerate north of Mackay; Medicine Lodge beds of southern Beaverhead Mountains; and isolated deposits in northern Idaho.
Sedimentary > Clastic > Mixed-clastic (Bed)Includes conglomerate, sandstone, and shale.
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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 | Butte - Clark - Clearwater - Custer - Latah - Lemhi |