We went to a game over the summer and parked for free at the Casino Queen. The free shuttle is nice and easy. The Casino has a nice buffet too.
There is also Sundemeier RV Park in St. Charles, MO. St. Charles is a cool place to visit all on its own.
Babler SP is nice and wooded it is not that far from the city.
I believe the Red Barn RV park in Edwardsville, IL opens for the season on April 1st.
Pere Marquette SP in Grafton, IL is about an hour away. Nice little river town. There is always something going on there. Wineries, flea market, bands, etc. If you have time take a drive from Mo on Hwy 94 to Grafton Ferry Road. Ride the ferry across, visit the SP. Take a drive up the bluff above the Lodge and down the back way to Rt 100. Go back via Rt 100 towards Alton, IL. You get a great view of the Bluffs on one side and the river on the other side of the road.
