Allied Chemical & Dye Corporation, Solvay Process Division
1.25 miles northwest of Prairie du Rocher, Portion of the quarry is in Section 17-5S-9W, Randolph County, Illinois;
Photographs courtesy of Allied Chemical & Dye Corporation;
2 photographs and negatives;
Allied Chemical & Dye Corporation
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 email@example.com Monday thru Friday, 8am-noon or 1pm-5pm.