Rapid City PTO is getting ready for their upcoming Spring Auction and Dinner on Saturday, May 6, 2017 Rapid City PTO is sponsoring the 16 th annual Auction & Spring Dinner. The event will be held on Saturday, May 6, 2017 at Rapid City Elementary School. The “Past-Present-Future” themed dinner will begin at 5 pm with a Live Auction starting at 6 pm . . . .