| Middle River | |
| Pushpin Map: | Minnesota |
| Pushpin Map Caption: | Mouth of the Middle River |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Minnesota |
| Subdivision Type3: | County |
| Subdivision Name3: | Marshall County |
| Mouth Coordinates: | 48.3714°N -97.0797°W |
| Progression: | Middle River→ Snake River→ Red River of the North→ Lake Winnipeg→ Nelson River→ Hudson Bay |
| River System: | Snake River |
The Middle River is a tributary of the Snake River in northwestern Minnesota in the United States. It flows for its entire length in Marshall County.
Middle River was so named from its location at the midpoint of the Pembina Trail.[1]
The Middle River is long[2] and drains an area of . It rises near the town of Middle River and flows generally westwardly past the towns of Newfolden and Argyle. At Old Mill State Park the river crosses an old beach of glacial Lake Agassiz. Much of the Middle River's lower course through the Red River Valley has been straightened and channelized; for approximately its final 10miles, the Middle has been routed to flow due west in a straight line. It joins the Snake River not far upstream of that river's confluence with the Red River of the North.[3]