The Stillwater River rises 15 miles south of the border between Montana and Alberta, west of Glacier National Park in the Kootenai National Forest . It runs mainly south to Duck Lake, then Upper Stillwater Lake, Lagoni Lake and on to Lower Stillwater Lake. It then flows south to Kalispell where it joins the Whitefish River , very near where that river enters the Flathead River.

There is another Stillwater River in Montana, see Stillwater River (southern Montana).

See also

• List of Montana rivers