Denver Post, Doc Holliday Casino has closed effective June 13th, 2013. Chips and Tokens from Doc Holliday Casino may be redeemed at Bull Durham Casino Cashier’s Cage through October 13th, 2013. Bull Durham Casino is located at: 110 Main Street, Black Hawk, CO 80422. 303-582-0810 HOURS OF OPERATION SunThurs: 8:00 am2:00 am. Fri/Sat: 8:00 am4:00 am