The Montreal River is a river on the Keweenaw Peninsula of the U.S. state of Michigan. The Montreal River contains several rare plants and habitat, falls, and archeological sites; the lower portion of the Montreal River to Smith Fisheries is lowland conifer and contains steep slopes. There are three major waterfalls, and several smaller rapids.
In 2002, the state of Michigan purchased in a two-phase acquisition. It includes over of shoreline, and covers the Montreal River from the mouth and up for several miles.