Spartan Rock 2021 Click HERE to register for the 2021 Spartan Rock Auction. Be ready to bid starting Friday, March 19th at 7 a.m. and it will end promptly at 9 p.m. Items can be picked up Friday night from 9:15 p.m. to 10 p.m. or Saturday morning 9 a.m. - 11 p.m. Published March 18, 2021 Print