- Middle Mississippi River National Wildlife Refuge99 S. Main St. St. Genevieve, MO 63670
- Headquarters Office and Visitor Contact Station HoursMonday - Friday, except federal holidays7:30 a.m. - 4:00 p.m.Note:Refuge office is located in St. Genevieve, Missouri.Lands, Roads and Trails HoursDailyDaylight hours only, except for lawful hunting activities which may occur from 1/2 hour before legal sunrise - 1/2 hour after legal sunset