Smith Branch is a stream in Montgomery County in the U.S. state of Missouri. It is a tributary of Clear Fork of the Loutre River.
The stream headwaters arise at and it flows northwest passing under I-70 just south of New Florence. It continues to the west-northwest to its confluence with Clear Fork at approximately three miles southwest of Montgomery City.New Florence, MO and Montgomery City, MO, 7.5 Minute Topographic Quadrangles, USGS, 1973
Smith Branch has the name of James Smith, a pioneer citizen.
See also List of rivers of Missouri
References