Got my tickets to the Saturday member's only session and the Thursday night session. As a Colorado native and a Denver resident for 8 years I'm ashamed to say that this will be my first GABF. I know know, for shame!
Anyway, for all you out of towners that are coming and looking to check out some breweries while you're here, please visit some out these smaller, local places. I know that Avery, Left Hand, New Belgium are well known outside of Denver, but some of these smaller guys are putting out fantastic stuff.
Renegade Brewing Company. My favorite local brewery.
Wit's End Brewing Company <---IMO, they make the city's best Hefe
River North Brewery. They primarily use Belgian yeasts in their brews, so if you're into that sort of thing be sure to check them out!
Strange Brewing Company. In a quirky spot under the interstate, but they always have something creative on tap or firkin.
Copper Kettle Brewing Company. A little further from downtown, but nearly everything they make is grade A solid.
TRVE Brewing Company. Brand new brewery just a hop and a skip from downtown, just a few months old but demand for their brews is high.
Hogshead Brewery. English style brews on tap and in casks.
Breckenridge Brewery. Most should be familiar with them.
Bull & Bush. They recently took home 4 medals at the World Cup, plus you can do tableside hop infusions!
Del Norte Brewing Company. Mexican style beers. They just opened a new tap room.
Dry Dock Brewing. Previously mentioned in this thread. Kinda far from downtown in Aurora, but they have a lot of taps and a huge tasting room.
Vine Street Pub Sister to the Mountain Sun of Boulder, they recently opened their own brewery. FYI, CASH ONLY, so be prepared.
Caution Brewing Co.
Yak and Yeti. This is actually a Indian/Nepalese restaurant, but they also make their own beer.
Golden City Brewery. Located in Golden, their tap room is crazy tiny, but they have a large backyard patio with great views of the mountains. Second Largest Brewery in Golden, CO!
Great Diving Brewing Company. No need to explain. Go get some Yeti.
Wynkoop Brewing Company. Conveniently located downtown, plus they have a full kitchen unlike most of these other places.