| Locality | Latitude | Longitude | Distance | Bearing |
|---|
| Garman Pit, Steuben County, Indiana, USA | 41° 42' 25" N | 85° 7' 38" W | 4.5km (2.8 miles) | |
| Lake James, Pokagon State Park, Steuben County, Indiana, USA | 41° 41' 47" N | 85° 2' 3" W | 12.0km (7.5 miles) | |
| Harmon Marl Quarry (Taylor & Son), Branch County, Michigan, USA | 41° 48' 11" N | 85° 0' 36" W | 15.7km (9.7 miles) | |
| Lagrange County Highway Department, Lagrange County, Indiana, USA | 41° 38' 42" N | 85° 25' 0" W | 22.5km (14.0 miles) | |
| Wolverine Portland Cement Company Shale pit, Coldwater, Branch County, Michigan, USA | 41° 54' 34" N | 84° 55' 5" W | 29.0km (18.0 miles) | |
| Miller Pit (Fought Pit), Noble County, Indiana, USA | 41° 31' 59" N | 85° 28' 55" W | 33.9km (21.1 miles) | |
| Peerless Portland Cement Company Shale pit, Branch County, Michigan, USA | 42° 2' 20" N | 85° 7' 9" W | 34.6km (21.5 miles) | |
| Marl Lake, St. Joseph County, Michigan, USA | 41° 46' 18" N | 85° 36' 55" W | 37.1km (23.0 miles) | |
| Fought Marl Pit, Lagrange County, Indiana, USA | 41° 32' 17" N | 85° 32' 24" W | 37.3km (23.2 miles) | |
| Miller Marl Pit, Lagrange County, Indiana, USA | 41° 41' 25" N | 85° 38' 13" W | 38.9km (24.2 miles) | |
| Cass Lake Quarry, Lagrange County, Indiana, USA | 41° 42' 1" N | 85° 38' 35" W | 39.3km (24.4 miles) | |
| William Case Marl Pit, Calhoun County, Michigan, USA | 42° 5' 39" N | 85° 7' 30" W | 40.6km (25.3 miles) | |
| David Allwood pit (David Alwood), Calhoun County, Michigan, USA | 42° 6' 39" N | 85° 7' 9" W | 42.5km (26.4 miles) | |
| Kerr pit (Robert Kerr Peat and Marl), St. Joseph County, Michigan, USA | 41° 56' 48" N | 85° 39' 20" W | 46.8km (29.1 miles) | |
| Hayward Dry Marl Pit, Kalamazoo County, Michigan, USA | 42° 7' 50" N | 85° 30' 14" W | 52.3km (32.5 miles) | |
| Drake Marl pit (Coy Drake), St. Joseph County, Michigan, USA | 42° 2' 26" N | 85° 39' 33" W | 53.1km (33.0 miles) | |
| John Hess Marl pit, Hillsdale County, Michigan, USA | 42° 2' 20" N | 84° 37' 30" W | 56.8km (35.3 miles) | |
| Elkhart County Highway Department, Elkhart County, Indiana, USA | 41° 35' 12" N | 85° 49' 59" W | 57.3km (35.6 miles) | |
| Unnamed clay pit (MRDS - 10170660), Hillsdale County, Michigan, USA | 41° 45' 11" N | 84° 26' 54" W | 60.0km (37.3 miles) | |
| Zenith Portland Cement Company Clay Pit, Jackson County, Michigan, USA | 42° 8' 49" N | 84° 35' 59" W | 66.2km (41.1 miles) | |
| Jerome Brick and Tile Company Clay pit, Hillsdale County, Michigan, USA | 42° 1' 59" N | 84° 27' 50" W | 67.6km (42.0 miles) | |
| Parks Farm Clay prospect, Hillsdale County, Michigan, USA | 42° 2' 30" N | 84° 27' 50" W | 68.0km (42.3 miles) | |
| Whitley County Highway Department, Whitley County, Indiana, USA | 41° 9' 29" N | 85° 29' 23" W | 68.9km (42.8 miles) | |
| Woodburn Stone Quarry & Plant, Allen County, Indiana, USA | 41° 8' 38" N | 84° 53' 20" W | 69.4km (43.1 miles) | |
| Pipher's Marl Quarry, Cass County, Michigan, USA | 42° 2' 4" N | 85° 55' 29" W | 70.9km (44.1 miles) | |
| Fort Wayne, Allen County, Indiana, USA | 41° 4' 45" N | 85° 8' 21" W | 72.5km (45.0 miles) | |
| Spring Arbor Limestone Quarry, Jackson County, Michigan, USA | 42° 12' 28" N | 84° 33' 45" W | 73.2km (45.5 miles) | |
| Alpha Portland Cement Company Clay pit, Calhoun County, Michigan, USA | 42° 23' 44" N | 85° 2' 54" W | 74.7km (46.4 miles) | |
| Prather Farm bog iron locality, Lagrange Township, Cass County, Michigan, USA | 41° 54' 28" N | 86° 3' 51" W | 76.6km (47.6 miles) | |
| Jeffrey Quarry and Mill (Jeffrey Limestone Quarry), Parma, Jackson County, Michigan, USA | 42° 15' 55" N | 84° 35' 9" W | 76.7km (47.6 miles) | |
