| Locality | Latitude | Longitude | Distance | Bearing |
|---|
| W. Avoca Clay Sample Prospect, St. Clair County, Michigan, USA | 43° 3' 34" N | 82° 43' 0" W | 10.2km (6.4 miles) | |
| Large's Clay Pit, Sanilac County, Michigan, USA | 43° 12' 37" N | 82° 58' 5" W | 16.4km (10.2 miles) | |
| Port Huron Clay Products Company clay pit, Sanilac County, Michigan, USA | 43° 17' 12" N | 82° 37' 9" W | 22.7km (14.1 miles) | |
| Farley's Clay pit, Lapeer County, Michigan, USA | 42° 58' 54" N | 83° 2' 44" W | 26.0km (16.2 miles) | |
| Amcord Cement Company Pit (Cement Company; Division of Peerless Cement; Amcord), St. Clair County, Michigan, USA | 42° 54' 29" N | 82° 35' 36" W | 29.8km (18.5 miles) | |
| Sandusky Tile and Brick Company clay pit, Sanilac County, Michigan, USA | 43° 25' 45" N | 82° 49' 18" W | 33.3km (20.7 miles) | |
| Port Huron Salt Company, St. Clair County, Michigan, USA | 42° 49' 10" N | 82° 29' 9" W | 42.8km (26.6 miles) | |
| Anchor Bay, Lake St. Clair, St. Clair County, Michigan, USA | 42° 45' 14" N | 82° 39' 20" W | 43.4km (27.0 miles) | |
| Shriner Brick Company Clay Pit, St. Clair County, Michigan, USA | 42° 47' 49" N | 82° 29' 17" W | 44.8km (27.8 miles) | |
| St. Clair Salt Mine (Diamond Crystal), St. Clair County, Michigan, USA | 42° 47' 3" N | 82° 29' 23" W | 45.9km (28.5 miles) | |
| W. River Clay Sample Prospect, St. Clair County, Michigan, USA | 42° 47' 20" N | 82° 28' 46" W | 45.9km (28.5 miles) | |
| Engleman's Clay Pit, St. Clair County, Michigan, USA | 42° 41' 35" N | 82° 42' 34" W | 49.1km (30.5 miles) | |
| Marine City Well, St. Clair County, Michigan, USA | 42° 43' 0" N | 82° 30' 10" W | 51.9km (32.2 miles) | |
| Rochester, Oakland County, Michigan, USA | 42° 40' 50" N | 83° 8' 2" W | 57.0km (35.4 miles) | |
| Mt. Clemens well, Macomb County, Michigan, USA | 42° 36' 2" N | 82° 52' 0" W | 59.1km (36.7 miles) | |
| Cass River, Tuscola County, Michigan, USA | 43° 34' 26" N | 83° 13' 37" W | 60.3km (37.5 miles) | |
| Wyers Clay Pit, Huron County, Michigan, USA | 43° 41' 4" N | 82° 56' 54" W | 62.9km (39.1 miles) | |
| Fries Tile Works' Clay Pit, Macomb County, Michigan, USA | 42° 35' 39" N | 83° 4' 5" W | 63.5km (39.4 miles) | |
| Kettle Point, Bosanquet Township, Lambton County, Ontario, Canada | 43° 12' 43" N | 82° 1' 20" W | 63.6km (39.5 miles) | |
| Great Lake Minerals, Vassar, Tuscola County, Michigan, USA | 43° 22' 0" N | 83° 31' 18" W | 64.2km (39.9 miles) | |
| Unnamed shale prospect (MRDS - 10218526), Huron County, Michigan, USA | 43° 42' 0" N | 82° 36' 44" W | 65.1km (40.5 miles) | |
| Warren Brick Company Clay Pit, Macomb County, Michigan, USA | 42° 32' 7" N | 83° 2' 25" W | 69.0km (42.9 miles) | |
| East Gass's Clay Pit, Macomb County, Michigan, USA | 42° 30' 50" N | 82° 57' 34" W | 69.8km (43.4 miles) | |
| Alliance Brick Company Clay Pit, Macomb County, Michigan, USA | 42° 30' 29" N | 83° 2' 7" W | 71.8km (44.6 miles) | |
| Water Well, Mount Morris, Genesee County, Michigan, USA | 43° 7' 40" N | 83° 41' 35" W | 72.6km (45.1 miles) | |
| Unnamed placer, Birmingham, Oakland County, Michigan, USA | 42° 32' 48" N | 83° 12' 51" W | 73.2km (45.5 miles) | |
| Daniels Clay Pit (Birmingham Brick and Tile Company), Oakland County, Michigan, USA | 42° 32' 15" N | 83° 12' 45" W | 74.0km (46.0 miles) | |
| Thedford Quarry, Bosanquet Township, Lambton County, Ontario, Canada | 43° 10' 32" N | 81° 51' 14" W | 76.8km (47.7 miles) | |
| Arkona area, Williams Township, Middlesex County, Ontario, Canada | 43° 4' 23" N | 81° 50' 3" W | 78.5km (48.8 miles) | |
| Bigelow Clay Products Company clay pit, Oakland County, Michigan, USA | 42° 31' 54" N | 83° 19' 40" W | 79.3km (49.3 miles) | |
