Place
- DeKalb3
- Evanston.3
- Fountaindale.3
- Jasper3
- Lake Forest3
- Macoupin3
- Massac3
- Near Oquawka.3
- Near Urbana3
- Oregon.3
- Pulaski3
- Rockford3
- Spring Mill bog, near East Peoria3
- St. Clair3
- Starved Rock State Park3
- Wady Petra.3
- Waukegan.3
- West side of Illinois Route 2, starting 13 feet west of pavement & approximately 420 feet north of Cultra Road.3
- About 7 mi ESE of Harrisburg on Shawnee Nat'l Forest.2
- Across the Wabash River from Vincennes, Indiana Robeson Hills Nature Preserve.2