2019 DNR sale set for May 4 4/2/2019 1:00:00 PM View Count 5868 DES MOINES – The Iowa Department of Natural Resources will hold the 2019 spring auction on May 4, at the Elwell Family Food Center on the Iowa State Fairgrounds, in Des Moines. Doors will open at 7 a.m., and the auction will begin at 8:30 a.m.