| LAKEHURON | Body of water between Ontario and Michigan |
| NIAGARA | River, part of the boundary between Ontario and New York |
| GREAT | Like Lakes Ontario and Michigan |
| ERIE | Item Ontario and Michigan have in common |
| GREATLAKES | Superior, Huron, Erie, Ontario and Michigan, collectively |
| LAKES | Ontario and Michigan |
| OTTAWA | River between Ontario and Quebec |
| MANITOBA | Canadian province between Ontario and Saskatchewan (8) |
| SAULT | ___ Ste. Marie, Ontario & Michigan (5) |
| LAKESTCLAIR | Freshwater lake lying between Ontario, Canada and Michigan, USA (4,2,5) |
| LAKESUPERIOR | Body of water bounded on the south by Wisconsin and Michigan (4,8) |
| EMS | Capitals of Maryland and Michigan? |
| KAMICHI | American flyer found between Alaska and Michigan |
| GARA | This rhododendron cultivar is also a natural water feature that straddles the border of Ontario and the US state of New York (4) |
| NIA | This rhododendron cultivar is also a natural water feature that straddles the border of Ontario and the US state of New York (3) |
| WOODS | Lake of the ___ (it's in parts of Ontario and Manitoba) |
| LAKEERIE | 'Great' partner of Michigan, Huron, Ontario and Superior (4,4) |
| WISCONSIN | US state bordering Lakes Superior and Michigan (9) |
| ORIGAMI | Japanese art found in Ohio, Rhode Island, Georgia and Michigan (7) |
| ONT | Canadian province that borders Minnesota and Michigan for short |
