![Keweenaw Waterway during Winter](http://upload.wikimedia.org/wikipedia/commons/thumb/4/41/Keweenaw_Waterway_in_Winter.jpg/350px-Keweenaw_Waterway_in_Winter.jpg)
The Keweenaw Waterway is a partly natural, partly manmade waterway which cuts across the Keweenaw Peninsula of Michigan. Parts of the waterway are variously known as the Keweenaw Waterway, Portage Canal, Portage Lake Canal, Portage River, Lily Pond, and Portage Lake.