Heading to Colorado this weekend. Where do I go, what do I drink?

So I'm going to Breckinridge this Saturday until next Saturday. I've looked around and have seen some great options, but I wanted to see what r/beer thought.

I will have a rental car so it won't really be a problem getting around. I know I am going to be in Denver for at least 1, maybe 2 of the days already.

So r/beer, what beers can I not miss, what breweries must I tour, and what bars/bottle shops should I throw my wallet at?