Twenty-one is a big number in the beer world: It's the legal drinking age, the amendment that repealed Prohibition — and the number of years Great Divide Brewing Company has been selling beer to thirsty Coloradans. Great Divide celebrate its 21st anniversary on Saturday on the site of its future location on Brighton Boulevard, with food trucks, live music and a few special-release beers. Ticket holders walked away with commemorative stainless-steel pint glasses and a quenched thirst. Photographer Danielle Lirette was on hand to capture the festivities. For more photos, see our complete slideshow.