Colorado: Gilpin County – Black Hawk and Central City – to reopen casinos June 17 Jenna Caroll, Fox 31 News (Denver) · June 7, 2020 at 11:53 pm The Colorado Department of Public Health and Environment has approved Gilpin County’s request for a variance that will allow casinos to reopen. The variance approves slot machines to be operational. “An evaluation of the appropriateness to open table games will happen in three weeks,” a spokesperson from Gilpin County said. The opening date for casinos will be June 17. This will give casinos time to meet the requirements set forth in the variance and the local health order.