| Locality | Latitude | Longitude | Distance | Bearing |
|---|
| Huelsman Quarry, Clinton County, Illinois, USA | 38° 34' 41" N | 89° 23' 7" W | 8.4km (5.2 miles) | |
| Koch's Mine, Breese, Clinton County, Illinois, USA | 38° 36' 24" N | 89° 30' 55" W | 8.9km (5.5 miles) | |
| Limestone Prospect (MRDS - 10145019), Clinton County, Illinois, USA | 38° 37' 36" N | 89° 29' 30" W | 10.3km (6.4 miles) | |
| Covington Quarry and Mill No. 1, Washington County, Illinois, USA | 38° 27' 2" N | 89° 25' 1" W | 10.5km (6.5 miles) | |
| Unnamed Limestone Quarry (MRDS - 10266512), Washington County, Illinois, USA | 38° 26' 39" N | 89° 25' 14" W | 11.0km (6.8 miles) | |
| Pitts Quarry and Mill, Washington County, Illinois, USA | 38° 26' 12" N | 89° 26' 30" W | 11.3km (7.0 miles) | |
| Clinton County Highway Department pit, Clinton County, Illinois, USA | 38° 36' 42" N | 89° 22' 23" W | 11.6km (7.2 miles) | |
| Unnamed Limestone Quarry (MRDS - 10266151), Jackson County, Illinois, USA | 38° 38' 25" N | 89° 30' 10" W | 12.0km (7.4 miles) | |
| Limestone Prospect (MRDS - 10144722), Clinton County, Illinois, USA | 38° 39' 50" N | 89° 30' 45" W | 14.7km (9.1 miles) | |
| Limestone Prospect (MRDS - 10217905), Clinton County, Illinois, USA | 38° 40' 45" N | 89° 30' 45" W | 16.4km (10.2 miles) | |
| Arthur Quarry, Clinton County, Illinois, USA | 38° 40' 50" N | 89° 31' 33" W | 16.8km (10.5 miles) | |
| Limestone Prospect (MRDS - 10290665), Clinton County, Illinois, USA | 38° 41' 15" N | 89° 29' 30" W | 16.9km (10.5 miles) | |
| Limestone Prospect (MRDS - 10169397), Clinton County, Illinois, USA | 38° 43' 0" N | 89° 30' 39" W | 20.4km (12.7 miles) | |
| Covington Quarry No. 3, Washington County, Illinois, USA | 38° 20' 38" N | 89° 26' 36" W | 21.5km (13.4 miles) | |
| Limestone Prospect (MRDS - 10241566), Clinton County, Illinois, USA | 38° 43' 50" N | 89° 30' 50" W | 22.0km (13.7 miles) | |
| Washington Company Highway Department pit, Washington County, Illinois, USA | 38° 20' 30" N | 89° 23' 6" W | 22.8km (14.2 miles) | |
| Nashville City Engineering, Washington County, Illinois, USA | 38° 20' 30" N | 89° 23' 6" W | 22.8km (14.2 miles) | |
| W .Elkhorn Creek Clay Exposure Prospect, Washington County, Illinois, USA | 38° 21' 2" N | 89° 35' 18" W | 23.2km (14.4 miles) | |
| Limestone Prospect (MRDS - 10193725), Clinton County, Illinois, USA | 38° 44' 25" N | 89° 32' 14" W | 23.5km (14.6 miles) | |
| Jolliff Shale Exposure Prospect, Clinton County, Illinois, USA | 38° 33' 7" N | 89° 9' 24" W | 27.0km (16.8 miles) | |
| Unnamed Limestone Quarry (MRDS - 10169040), Washington County, Illinois, USA | 38° 18' 20" N | 89° 21' 24" W | 27.4km (17.0 miles) | |
| Limestone Prospect (MRDS - 10290369), Washington County, Illinois, USA | 38° 18' 55" N | 89° 17' 39" W | 28.8km (17.9 miles) | |
| Centralia City Pit, Marion County, Illinois, USA | 38° 31' 29" N | 89° 7' 59" W | 29.0km (18.0 miles) | |
| Lively Grove Mine, Washington County, Illinois, USA | 38° 16' 59" N | 89° 39' 11" W | 32.5km (20.2 miles) | |
| J. H. Forester Shale Drill, Perry County, Illinois, USA | 38° 16' 45" N | 89° 14' 14" W | 34.9km (21.7 miles) | |
| Limestone Prospect (MRDS - 10193555), St. Clair County, Illinois, USA | 38° 38' 9" N | 89° 52' 0" W | 36.5km (22.7 miles) | |
| Mud Creek Shale Exposure Prospect, Perry County, Illinois, USA | 38° 12' 50" N | 89° 33' 39" W | 36.8km (22.9 miles) | |
| Marissa Mine, Washington County, Illinois, USA | 38° 14' 49" N | 89° 41' 40" W | 37.8km (23.5 miles) | |
| Limestone Prospect (MRDS - 10242098), St. Clair County, Illinois, USA | 38° 24' 39" N | 89° 52' 30" W | 38.2km (23.7 miles) | |
| Limestone Prospect (MRDS - 10168833), Washington County, Illinois, USA | 38° 15' 15" N | 89° 12' 24" W | 38.7km (24.0 miles) | |
Koch's Mine, Breese, Clinton County, Illinois, USA