| Locality | Latitude | Longitude | Distance | Bearing |
|---|
| Crystal Rock, Erie County, Ohio, USA | 41° 26' 32" N | 82° 50' 33" W | 0.5km (0.3 miles) | |
| U. S. Gypsum Mine, Gypsum, Portage Township, Ottawa County, Ohio, USA | 41° 29' 31" N | 82° 52' 42" W | 5.8km (3.6 miles) | |
| Gypsum, Portage Township, Ottawa County, Ohio, USA | 41° 29' 36" N | 82° 52' 32" W | 5.8km (3.6 miles) | |
| Castalia, Erie County, Ohio, USA | 41° 24' 0" N | 82° 48' 30" W | 6.0km (3.7 miles) | |
| Wagner Quarries Co. Castalia quarry, Castalia, Erie County, Ohio, USA | 41° 23' 16" N | 82° 49' 47" W | 6.6km (4.1 miles) | |
| Erie Blacktop Inc. Castalia quarry, Castalia, Erie County, Ohio, USA | 41° 24' 47" N | 82° 46' 6" W | 7.3km (4.6 miles) | |
| American Mine Number 2 Quarry, Portage Township, Ottawa County, Ohio, USA | 41° 30' 26" N | 82° 53' 11" W | 7.6km (4.7 miles) | |
| Sandusky, Erie County, Ohio, USA | 41° 26' 56" N | 82° 42' 28" W | 11.4km (7.1 miles) | |
| Lakeside Marblehead, Danbury Township, Ottawa County, Ohio, USA | 41° 32' 24" N | 82° 44' 35" W | 13.4km (8.3 miles) | |
| Lakeside, Danbury Township, Ottawa County, Ohio, USA | 41° 32' 35" N | 82° 44' 54" W | 13.4km (8.3 miles) | |
| Sandusky Crushed Stone Co. Quarry, Parkertown, Erie County, Ohio, USA | 41° 20' 3" N | 82° 46' 56" W | 13.5km (8.4 miles) | |
| Wagner Quarries Co. Soldiers Home quarry, Sandusky, Erie County, Ohio, USA | 41° 24' 44" N | 82° 40' 37" W | 14.5km (9.0 miles) | |
| Prout, Erie County, Ohio, USA | 41° 21' 4" N | 82° 41' 59" W | 16.1km (10.0 miles) | |
| Norfolk Southern Railroad Bellevue Yard occurrence, Erie County, Ohio, USA | 41° 17' 46" N | 82° 46' 48" W | 17.5km (10.9 miles) | |
| France Stone Co. Quarry, Bellevue, Sandusky County, Ohio, USA | 41° 16' 57" N | 82° 50' 58" W | 18.2km (11.3 miles) | |
| Bellevue, Sandusky County, Ohio, USA | 41° 16' 25" N | 82° 50' 29" W | 19.2km (11.9 miles) | |
| Carpenter Point, Kelleys Island, Lake Erie, Erie County, Ohio, USA | 41° 36' 13" N | 82° 44' 4" W | 19.7km (12.3 miles) | |
| Kellstone quarry, Kelleys Island, Lake Erie, Erie County, Ohio, USA | 41° 36' 12" N | 82° 43' 24" W | 20.2km (12.5 miles) | |
| Crystal Cave, South Bass Island, Put-In-Bay Township, Ottawa County, Ohio, USA | 41° 38' 47" N | 82° 49' 36" W | 22.3km (13.9 miles) | |
| Hanson Aggregates Midwest Inc. Flat Rock Quarry, Seneca County, Ohio, USA | 41° 14' 26" N | 82° 52' 14" W | 23.0km (14.3 miles) | |
| Blue Bridge, West Branch Huron River, Monroeville, Huron County, Ohio, USA | 41° 16' 45" N | 82° 40' 31" W | 23.3km (14.5 miles) | |
| Huron Shale burn site, Huron River, Huron County, Ohio, USA | 41° 16' 41" N | 82° 40' 27" W | 23.5km (14.6 miles) | |
| Huron, Erie County, Ohio, USA | 41° 23' 42" N | 82° 33' 18" W | 24.8km (15.4 miles) | |
| Huron River bridge occurrence, Milan, Erie County, Ohio, USA | 41° 18' 3" N | 82° 36' 35" W | 25.4km (15.8 miles) | |
| Fremont, Sandusky County, Ohio, USA | 41° 21' 1" N | 83° 7' 18" W | 25.5km (15.8 miles) | |
| Monroeville, Huron County, Ohio, USA | 41° 14' 39" N | 82° 41' 46" W | 25.7km (16.0 miles) | |
| Monroeville (2), Huron County, Ohio, USA | 41° 14' 32" N | 82° 42' 0" W | 25.7km (16.0 miles) | |
| Milan, Erie County, Ohio, USA | 41° 17' 50" N | 82° 36' 20" W | 25.9km (16.1 miles) | |
| Precision Aggregates Incorporated Fremont Quarry, Fremont, Sandusky County, Ohio, USA | 41° 20' 56" N | 83° 8' 57" W | 27.6km (17.2 miles) | |
| Milan, Huron County, Ohio, USA | 41° 17' 2" N | 82° 35' 30" W | 27.8km (17.3 miles) | |
Crystal Rock, Erie County, Ohio, USA