Outcrop of Ste. Genevieve and St. Louis Limestone Formations (Mississippian), looking south toward Lewis and Clark Bridge at Alton.
14-5N-10W-7h and 8h, Madison County, Illinois;
1 photograph and negative;
June 22, 1955;
Madison County
Mississippian System
Ste. Genevieve Limestone
St. Louis Limestone
Limestone
Manuscripts, maps, fieldnotes, and photographs may be viewed in-house only. Please contact the ISGS Special Collections Curator, Anne Huber, for an appointment at 217-300-0005 or email huber@illinois.edu Monday thru Friday, 8am-noon or 1pm-5pm.