Casinos in Colorado counties prepare to reopen after three-month long closure Adi Guajardo, ABC-7 (Denver) · June 14, 2020 at 11:06 pm Casinos sat dormant for nearly three months but in less than a week, the flashing lights and sounds of slot machines will come alive. The state has approved the reopening of casinos in Gilpin and Teller counties, with a list of new guidelines. Since casinos closed their doors, the vibrancy and tourism in Black Hawk and Central City grew eerie and the towns look desolate. COVID-19 marked a sobering time for the billion-dollar casino industry in Colorado, normally open year-around. Monarch Casino General Manager Craig Pleva started his career in the casino industry 23 years ago.