Canada Hudson Bay drainage

Hudson Bay drainage basin
drainage basin
The Hudson Bay drainage connects primarily to the Labrador Sea just south of Davis Strait as depicted on most atlases such as those of the National Geographic Society just north of the 60th parallel north and northeast of the Labrador Peninsula
Countries	Canada, United States
Highest point	Mount Assiniboine
- location	Canadian Rockies
- coordinates	50°12′10″N 115°39′3″W / 50.20278°N 115.65083°W / 50.20278; -115.65083

The Hudson Bay drainage basin is the drainage basin in northern North America where surface water empties into Hudson Bay and adjoining waters. Spanning an area of about 3,861,400 square kilometres (1,490,900 sq mi), the basin is almost totally in Canada (spanning parts of the Prairies, central and northern Canada), with a small portion in the United States (in Montana, the Dakotas, and Minnesota). The watershed's headwaters are in part on the Continental Divide of the Americas, and the watershed's connection to the Labrador Sea is at the Hudson Strait's mouth between Resolution Island in the Qikiqtaaluk Region and Cape Chidley on the Labrador Peninsula. On the Continental Divide the basin is bounded at Triple Divide Peak to the south, and Snow Dome to the north.

Hudson Bay is often considered part of the Arctic Ocean. For example, the International Hydrographic Organization (in its current unapproved working edition only of Limits of Oceans and Seas) defines the Hudson Bay, with its outlet extending from 62.5 to 66.5 degrees north (just a few miles south of the Arctic Circle) as being part of the Arctic Ocean, specifically "Arctic Ocean Subdivision 9.11." Other authorities include it, in part because of its greater water budget connection, with the Atlantic Ocean.