Buy your Colorado Ballet tickets in addition to The Great Gatsby, Alice In Wonderland - Ballet and Casanova - Ballet events appeared in Ellie Caulkins Opera House or those that take place in Ellie Caulkins Opera House and save a bunch.tickethold.com is a licensed Denver ticket broker that supplies Colorado Ballet schedule and the highest quality Ellie Caulkins Opera House or even Ellie Caulkins Opera House events tickets at the best price on the internet.