Lake Ontario is the easternmost of the Great Lakes. It is touched by the U.S. state of New York and the Canadian province of Ontario.
| Lake Ontario Facts | |
| Surface area (sq mi) | 7,340 |
| Volume (cu mi) | 393 |
| Average depth (ft) | 283 |
| Maximum depth (ft) | 802 |
| Maximum length (mi) | 193 |
| Maximum width (mi) | 53 |