Prairie Knights Casino & Resort Temporarily Closed The Standing Rock Sioux Tribal Council and the management of Prairie Knights Casino have temporarily closed Prairie Knights Casino and Resort due to COVID-19. The casino, along with the lodge, pavilion, event center, and restaurants will be closed as of Tuesday, March 24. The Quik Mart convenience store will remain open. The resort's management team says, that casino operation will resume when the virus is no longer a threat. We will keep you updated on the situation as more information becomes available.