Thanks for all the replys! We booked two sites today at Hill city KOA. We won't even be going till mid july but wanted to make sure we can get a good site. Thinking about hitting the "mall of america" on the way back.
Stayed at Rafter J Bar for 2 weeks back in '07. Very nice park and I'd recommend it with no reservations (but you better have some if your going). You can take a look at my review of this park at this link:
Turn Key and DW
Pepsi, One Very Spoiled Boston Terrier
Bentley, One Very Pushy Chiweenie
'03 Chevy 2500HD, 4X4, X-Cab, Long-Bed
'14 Winnebago 26FWRKS ("Sunday Haus III")
Twin Kayaks, "The Ride" by Wilderness Systems