I'd skip Coors, in Denver you have breckinridge, strange and renegade brewing, colorado cider company all within walking distance of each other near, Santa fe arts area. Copper kettle, bull and bush in cherry creek area. Denver beer co just opened a couple weeks ago havent been there yet but hear good things. Ale house at Amatos good food good beers. Boulder has Asher brewing, twisted pine, redstone meadery, backcountry pizza and tap house has great selection of drafts. Fort collions has NB, odells, funkworks/crooked Stave, Coopersmiths, fort Collins brewery. Longmont has big beaver brewing, grim brothers.
Way too many to name but there are a few to look into. Enjoy Colorado.