Most are open 24 hours a day, varying the gambit in size, from slot-only to dozens of table games. You can find casinos only in specific towns or on Indian reservations, as well as gambling at an Aurora horse track and Off-Track Betting venues. Gambling has always been part of Colorado’s Wild West culture and continues to thrive to this day. Whether you’re looking to spend all your time at the blackjack tables or you’d like to…Ĥ Best Colorado Hotel CasinosRead More Guide to Colorado Casinos, Gaming, and Horse Racing Main Street casinos in Black Hawk.