Fluvial and lake sediment.

Largely fine-grained sediment, in part playa deposits of evaporative lakes; includes Snake River Group and Bruneau Formation in central Snake River Plain and glacial lake deposits in Bonners Ferry area of northern Idaho. Also includes travertine and tufa northeast of Bancroft and Lake Thatcher sediments in the Gem Valley south of Grace. (Quaternary Sediments).
State Idaho
Name Fluvial and lake sediment.
Geologic age Quaternary
Lithologic constituents
Unconsolidated > Fine-detrital (Fluvial, Lacustrine, Playa, Glacial)
Sedimentary > Carbonate > Limestone (Bed)Includes travertine and tufa northeast of Bancroft.

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 Ada - Bear Lake - Bingham - Blaine - Bonneville - Boundary - Butte - Caribou - Clark - Elmore - Franklin - Gooding - Jefferson - Jerome - Lincoln - Owyhee - Power - Twin Falls