| Locality | Latitude | Longitude | Distance | Bearing |
|---|
| Troy, Lincoln County, Missouri, USA | 38° 58' 46" N | 90° 58' 50" W | 6.4km (4.0 miles) |
| Magruder Quarry & Plant (Watson Quarry Company), Troy, Lincoln County, Missouri, USA | 39° 1' 26" N | 90° 57' 57" W | 9.4km (5.9 miles) |
| Sievers Quarry (Cockrell Quarry), Calhoun County, Illinois, USA | 39° 1' 45" N | 90° 40' 28" W | 22.9km (14.2 miles) |
| Kritesville Shale Exposure Prospect, Calhoun County, Illinois, USA | 39° 6' 12" N | 90° 40' 13" W | 27.5km (17.1 miles) |
| Gilead, Calhoun County, Illinois, USA | 39° 7' 27" N | 90° 40' 2" W | 29.2km (18.2 miles) |
| Calhoun Quarry No. 2, Calhoun County, Illinois, USA | 39° 5' 9" N | 90° 37' 0" W | 30.2km (18.8 miles) |
| Golden Eagle Quarry (West Lake Quarry and Material Company), Calhoun County, Illinois, USA | 38° 52' 23" N | 90° 34' 21" W | 31.0km (19.3 miles) |
| Calhoun Quarry, Calhoun County, Illinois, USA | 38° 53' 17" N | 90° 32' 12" W | 33.7km (20.9 miles) |
| Osborne Quarry, Calhoun County, Illinois, USA | 38° 54' 24" N | 90° 31' 9" W | 34.8km (21.6 miles) |
| Calhoun County Highway Department, Calhoun County, Illinois, USA | 39° 9' 29" N | 90° 37' 12" W | 34.8km (21.6 miles) |
| Hamburg Quarry, St. Charles County, Missouri, USA | 38° 39' 18" N | 90° 46' 30" W | 34.8km (21.6 miles) |
| Warrenton meteorite, Warren County, Missouri, USA | 38° 40' 59" N | 91° 9' 0" W | 35.6km (22.1 miles) |
| Sievers Quarry, Jersey County, Illinois, USA | 39° 9' 26" N | 90° 33' 32" W | 38.8km (24.1 miles) |
| Valstad Quarry No. 3, Jersey County, Illinois, USA | 39° 4' 41" N | 90° 29' 20" W | 39.8km (24.7 miles) |
| Klondike Quarry (Klondike Sandstone Quarry), St. Charles County, Missouri, USA | 38° 34' 49" N | 90° 50' 17" W | 41.4km (25.7 miles) |
| Grafton, Jersey County, Illinois, USA | 38° 58' 11" N | 90° 25' 53" W | 42.2km (26.2 miles) |
| Fox Creek Shale Exposure Prospect, Calhoun County, Illinois, USA | 39° 17' 29" N | 90° 42' 33" W | 42.2km (26.2 miles) |
| Unnamed Limestone Quarry (MRDS - 10120996), Jersey County, Illinois, USA | 38° 58' 24" N | 90° 25' 35" W | 42.6km (26.5 miles) |
| Ashley, Pike County, Missouri, USA | 39° 15' 4" N | 91° 13' 14" W | 42.7km (26.5 miles) |
| Columbia Quarry Company, Jersey County, Illinois, USA | 38° 58' 5" N | 90° 25' 14" W | 43.1km (26.8 miles) |
| Ashley Quarry, Ashley, Pike County, Missouri, USA | 39° 14' 51" N | 91° 14' 7" W | 43.1km (26.8 miles) |
| Grafton Quarry, Grafton, Jersey County, Illinois, USA | 38° 58' 5" N | 90° 24' 23" W | 44.3km (27.5 miles) |
| Westlake Quarry, Bridgeton, St. Louis County, Missouri, USA | 38° 46' 1" N | 90° 26' 38" W | 45.7km (28.4 miles) |
| Clarksville, Pike County, Missouri, USA | 39° 22' 9" N | 90° 54' 17" W | 46.9km (29.1 miles) |
| Western Whiting Company Quarry, Jersey County, Illinois, USA | 38° 57' 6" N | 90° 21' 44" W | 48.1km (29.9 miles) |
| Bridgeton, St. Louis County, Missouri, USA | 38° 46' 1" N | 90° 24' 41" W | 48.3km (30.0 miles) |
| Elsah, Jersey County, Illinois, USA | 38° 57' 21" N | 90° 21' 34" W | 48.3km (30.0 miles) |
| Eldred Stone Company Quarry, Greene County, Illinois, USA | 39° 17' 4" N | 90° 33' 29" W | 48.7km (30.2 miles) |
| Schliper Brothers Quarry, Calhoun County, Illinois, USA | 39° 22' 2" N | 90° 44' 48" W | 48.9km (30.4 miles) |
| Unnamed Gypsum occurrence [1], Jaeger Knob (Jeager Knob), Clarksville, Pike County, Missouri, USA | 39° 23' 40" N | 90° 57' 32" W | 49.8km (31.0 miles) |
