There’s no better way to toast the Mile High spirit than with a proper 303 Day celebration. On March 3, 2026, head to Improper City for an all-day tribute to everything that makes Colorado one of a kind — community, culture and craft beer included.
Expect good vibes, familiar faces and a room full of locals (and honorary locals) raising a glass to the Centennial State. To keep the party going, enjoy $3.03 off all Colorado beers all day long — because nothing says 303 like supporting homegrown brews.
Whether you’ve called Denver home for years or you’re just passing through, this is your invitation to celebrate the people and places that make the 303 special.
RSVP for FREE and secure your spot HERE
About Improper City
Since opening its doors in 2019, Improper City has carved out a space that feels distinctly Denver — laid-back, creative and built for community. The expansive RiNo taproom and coffee bar features 36 rotating taps, a full bar, thoughtfully crafted cocktails and a seasonal menu that keeps things fresh year-round.
Designed with a “choose your own adventure” mindset, Improper City invites guests to come as they are — whether that means grabbing a morning latte, settling in with a local craft beer or meeting friends for an evening cocktail. The atmosphere is welcoming, inclusive and effortlessly cool.
Outside, the graffiti-adjacent patio is a destination of its own. Expect a dog-friendly setup, a seasonal outdoor bar, reliable Wi-Fi, rotating food trucks and plenty of space to spread out. Cozy up by the firepits, pull a board game off the shelf or post up with your laptop — however you do Improper City, you’ll feel right at home.