SGMC polygons for unit IDQTs;0, Silt, clay, sand, and gravel; Quaternary-Tertiary alluvial and lacustrine deposits; western Snake River Plain

Polygons of the specified geologic unit are provided below as a zipped shapefile. Only a few, simple attributes are included here. Coordinates are geographic with horizontal datum WGS84.

File name Size Unit details 200 kB Details