Tags
- Big Muddy River
- Carbondale
- Carbondale, Illinois
- Cave-In-Rock, Illinois
- Fluorine
- Fluorite
- Geographic coordinate system
- Illinois Route 3
- Limestone
- Mississippian
- Mississippi River
- Missouri
- Murphysboro, Illinois
- Ohio River
- Ozarks
- Pennsylvanian
- Rosiclare, Illinois
- Sandstone
- Shawnee
- Shawnee National Forest
- Southern Illinois
- Stewart Keller
- Tectonic
- Town