Old Mill State Park
Old Mill State Park WPA/Rustic Style Historic Resources | |
| Location | Marshall County, Minnesota, Off Co. Hwy. 39 E of Argyle |
|---|---|
| Nearest city | Argyle, Minnesota |
| Coordinates | 48°21′41″N 96°34′13″W / 48.361364°N 96.570329°W |
| Area | 25 acres (10 ha) |
| Built | 1937 |
| Architect | Multiple |
| Architectural style | NPS rustic architecture |
| Visitation | 14,465 (2006) |
| MPS | Minnesota State Park CCC/WPA/Rustic Style MPS |
| NRHP reference No. | 89001667 |
| Added to NRHP | October 25, 1989 |
Old Mill State Park is a small Minnesota state park on the Middle River between Argyle and Newfolden on an ancient beach of glacial Lake Agassiz in Marshall County in the northwestern part of the state.
It is a 406-acre (164 ha) park.