University of Illinois Urbana-Champaign

Academic Unit
Collection
Author(s)
Keyword(s)
Type of Resource
Showing 31–60 of 492 items
Thumbnail for Sand and gravel resources of Macon County, Illinois
Sand and gravel resources of Macon County, Illinois
Hester, Norman C.; Anderson, Richard C.

Thumbnail for Key stratigraphic control (Quaternary) : SSC area
Key stratigraphic control (Quaternary) : SSC area
Kempton, John P.; Hannah, Jacquelyn L.; Mushrush, Mary J.

Thumbnail for Glacial tills of Northwestern Illinois
Glacial tills of Northwestern Illinois
Illinois State Geological Survey; Frye, John Chapman