| Locality | Latitude | Longitude | Distance | Bearing |
|---|
| Exeter Clay Pit, Scott County, Illinois, USA | 39° 43' 14" N | 90° 29' 44" W | 9.7km (6.0 miles) | |
| Limestone Prospect (MRDS - 10144560), Scott County, Illinois, USA | 39° 43' 19" N | 90° 30' 15" W | 10.2km (6.3 miles) | |
| Morgan County Pit, Morgan County, Illinois, USA | 39° 43' 54" N | 90° 14' 5" W | 14.5km (9.0 miles) | |
| Scott Highway Department pit, Scott County, Illinois, USA | 39° 37' 48" N | 90° 27' 15" W | 15.8km (9.8 miles) | |
| Unnamed Limestone Quarry (MRDS - 10169007), Scott County, Illinois, USA | 39° 37' 24" N | 90° 27' 5" W | 16.4km (10.2 miles) | |
| Limestone Prospect (MRDS - 10193318), Morgan County, Illinois, USA | 39° 40' 24" N | 90° 13' 24" W | 18.2km (11.3 miles) | |
| Limestone Prospect (MRDS - 10290438), Morgan County, Illinois, USA | 39° 37' 45" N | 90° 15' 34" W | 19.3km (12.0 miles) | |
| Limestone Prospect (MRDS - 10291020), Scott County, Illinois, USA | 39° 35' 20" N | 90° 27' 34" W | 20.4km (12.6 miles) | |
| Unnamed Limestone Quarry (MRDS - 10291037), Scott County, Illinois, USA | 39° 34' 45" N | 90° 28' 11" W | 21.6km (13.4 miles) | |
| Shafer Clay Pit, Scott County, Illinois, USA | 39° 33' 39" N | 90° 26' 9" W | 23.0km (14.3 miles) | |
| Valley City Quarry, Pike County, Illinois, USA | 39° 42' 14" N | 90° 39' 33" W | 23.3km (14.5 miles) | |
| Thomas Quarry, Scott County, Illinois, USA | 39° 31' 27" N | 90° 30' 57" W | 28.7km (17.8 miles) | |
| Florence Plant No. 6 Quarry (Florence Plant No. 33), Pike County, Illinois, USA | 39° 38' 36" N | 90° 42' 43" W | 30.0km (18.7 miles) | |
| McKee Creek, Pike County, Illinois, USA | 39° 48' 18" N | 90° 45' 17" W | 30.7km (19.1 miles) | |
| Illinois Highway Shale Exposure Prospect, Pike County, Illinois, USA | 39° 44' 30" N | 90° 46' 32" W | 32.3km (20.1 miles) | |
| General Pit & Mill, Schuyler County, Illinois, USA | 40° 0' 54" N | 90° 36' 24" W | 32.9km (20.4 miles) | |
| Hammitt Quarry (Schuyler Stone Company Quarry; O'Brien Quarry), Schuyler County, Illinois, USA | 40° 4' 14" N | 90° 25' 59" W | 34.0km (21.1 miles) | |
| Frederick North Shale Clay Pit, Brown County, Illinois, USA | 39° 57' 38" N | 90° 42' 55" W | 34.6km (21.5 miles) | |
| Purington Clay Shale Pit, Greene County, Illinois, USA | 39° 27' 10" N | 90° 21' 44" W | 35.0km (21.7 miles) | |
| Valstad Quarry No. 2 (Valstad No. 2 Quarry; Martin Valstad Company), Greene County, Illinois, USA | 39° 27' 15" N | 90° 30' 11" W | 35.8km (22.2 miles) | |
| Limestone Prospect (MRDS - 10290987), Greene County, Illinois, USA | 39° 27' 0" N | 90° 30' 55" W | 36.5km (22.7 miles) | |
| Valstad Quarry No. 1 (Valstad Quarry; Madin Valstad Company), Greene County, Illinois, USA | 39° 26' 39" N | 90° 29' 38" W | 36.7km (22.8 miles) | |
| Mt. Sterling Plant No. 13 & Quarry, Brown County, Illinois, USA | 39° 53' 47" N | 90° 48' 2" W | 37.3km (23.1 miles) | |
| Patterson Township Pit, Greene County, Illinois, USA | 39° 26' 6" N | 90° 30' 25" W | 37.9km (23.6 miles) | |
| Chicago and Alton Railroad Quarry, Pike County, Illinois, USA | 39° 27' 44" N | 90° 37' 30" W | 38.9km (24.2 miles) | |
| Orton Quarry, Greene County, Illinois, USA | 39° 25' 47" N | 90° 33' 7" W | 39.6km (24.6 miles) | |
| Mt. Sterling Clay Pit & Mill (Mt. Sterling Tile Company), Brown County, Illinois, USA | 39° 58' 57" N | 90° 46' 2" W | 39.6km (24.6 miles) | |
| Lacy & Bauer Quarry & Mill, Pike County, Illinois, USA | 39° 27' 44" N | 90° 40' 19" W | 41.1km (25.5 miles) | |
| Pea Ridge Rock Number 1, Brown County, Illinois, USA | 40° 1' 0" N | 90° 45' 50" W | 41.8km (26.0 miles) | |
| Schuyler Highway Department pit, Schuyler County, Illinois, USA | 40° 7' 15" N | 90° 33' 42" W | 41.9km (26.0 miles) | |