- Agassiz National Wildlife Refuge22996 290th Street Northeast Middle River, MN 56737-9754
- Driving Directions
The refuge headquarters is located on Marshall County Road 7 (290th Street NE), 12 miles north of Thief River Falls and 11 miles east of Holt, Minnesota.
Headquarters office and visitor contact station hoursMonday - Friday7:30 a.m. to 4:00 p.m. except federal holidaysWeather closuresThe office may be closed due to weather if area schools are closedLost Bay habitat drive and hiking trail hoursMay - mid-OctoberDuring daylight hours as conditions allow