Here is the reservation & info website for the RV park/Campground close to the 20yr Party venue. It is approx 5-8 mins from the venue, & 12-15 from the host hotel. I'd suggest booking early, they fill up quick that time of year.
I am also working on a local Moose lodge that has sites, if anyone is a Moose member, contact me & I will get you more info.
Chip "House" Brock
Fire&Iron MC Sta.113