Place
- Morgan3
- Rock Island3
- Wady Petra.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
- Along Spoon River.2
- Brown2
- Camp Grant.2
- Carroll2
- East edge Decatur.2
- Hagerstown, narrow strip between State Rte 140 & con rail tracks on eastern outskirts of town.2
- Henderson2
- Henry2
- Kendall2
- Langman (Altorf) Island in the Kankakee River, opposite Altorf, ca 6 1/2 mi NW of Kankakee.2
- Massac2
- Mauvaise Terre Creek at US Rt 67, NE of bridge, Concord 7.5' quad.2
- Menard2
- Mokena.2