Campground · WI
GRANT RIVER
WI · Mississippi River - Pools 11-22
GRANT RIVER is generally plan ahead to book. Across the 6 months we have reservation data for, difficulty peaks in May (7/10) and eases to its lowest in June (5/10). The heat strip below breaks down every month — pick one for its full odds, lead-time chart, and easier nearby alternatives.
Booking difficulty by month
Midweek tip: in the busiest month (May), arrivals are lightest on Wednesday — shift your dates to improve your odds.
When reservations open
Booking window
Reservations open on a rolling 6-month window at 7:00 AM America/New York.
For example, sites for February 15, 2027 become bookable on August 15, 2026. Set a reminder a few minutes before release for the best shot.
Standard Recreation.gov 6-month rolling window: sites become bookable 6 months before arrival at 7:00 AM ET.
Sites & amenities
- 62 electric sites
- 10 tent-only sites
- 63 RV sites
- 1 accessible sites
- Max RV length 90 ft
Activities: BIRDING, DAY USE AREA, CAMPING, WATER ACCESS, PICNICKING, FISHING, EVENING PROGRAMS