Grossen Bart Brewery

Brewery

1025 Delaware Ave A, Longmont, CO 80501

Event Types

music (72)nightlife (30)trivia (16)food_drink (1)karaoke (1)sports (1)

View on Map Directions

Upcoming Events (25)

Open Mic Night

Tue, Oct 6, 20266:00 PM

Source: grossenbart.com · Last verified May 16, 2026

Mug Club Night

Wed, Oct 7, 2026

Source: grossenbart.com · Last verified May 16, 2026

Monday Happy Hour at Grossen Bart Brewery (5–7 PM)

Mon, Oct 12, 20265:00 PM

Source: grossenbart.com · Last verified May 16, 2026

Open Mic Night

Tue, Oct 13, 20266:00 PM

Source: grossenbart.com · Last verified May 16, 2026

Mug Club Night

Wed, Oct 14, 2026

Source: grossenbart.com · Last verified May 16, 2026

Monday Happy Hour at Grossen Bart Brewery (5–7 PM)

Mon, Oct 19, 20265:00 PM

Source: grossenbart.com · Last verified May 16, 2026

Open Mic Night

Tue, Oct 20, 20266:00 PM

Source: grossenbart.com · Last verified May 16, 2026

Mug Club Night

Wed, Oct 21, 2026

Source: grossenbart.com · Last verified May 16, 2026

Monday Happy Hour at Grossen Bart Brewery (5–7 PM)

Mon, Oct 26, 20265:00 PM

Source: grossenbart.com · Last verified May 16, 2026

Open Mic Night

Tue, Oct 27, 20266:00 PM

Source: grossenbart.com · Last verified May 16, 2026

Mug Club Night

Wed, Oct 28, 2026

Source: grossenbart.com · Last verified May 16, 2026

Monday Happy Hour at Grossen Bart Brewery (5–7 PM)

Mon, Nov 2, 20265:00 PM

Source: grossenbart.com · Last verified May 16, 2026

Open Mic Night

Tue, Nov 3, 20266:00 PM

Source: grossenbart.com · Last verified May 16, 2026

Mug Club Night

Wed, Nov 4, 2026

Source: grossenbart.com · Last verified May 16, 2026

Bingo/Music Bingo

Thu, Nov 5, 20268:00 AM

Source: grossenbart.com · Last verified May 16, 2026

Monday Happy Hour at Grossen Bart Brewery (5–7 PM)

Mon, Nov 9, 20265:00 PM

Source: grossenbart.com · Last verified May 16, 2026

Open Mic Night

Tue, Nov 10, 20266:00 PM

Source: grossenbart.com · Last verified May 16, 2026

Mug Club Night

Wed, Nov 11, 2026

Source: grossenbart.com · Last verified May 16, 2026

Monday Happy Hour at Grossen Bart Brewery (5–7 PM)

Mon, Nov 16, 20265:00 PM

Source: grossenbart.com · Last verified May 16, 2026

Open Mic Night

Tue, Nov 17, 20266:00 PM

Source: grossenbart.com · Last verified May 16, 2026

Mug Club Night

Wed, Nov 18, 2026

Source: grossenbart.com · Last verified May 16, 2026

Monday Happy Hour at Grossen Bart Brewery (5–7 PM)

Mon, Nov 23, 20265:00 PM

Source: grossenbart.com · Last verified May 16, 2026

Open Mic Night

Tue, Nov 24, 20266:00 PM

Source: grossenbart.com · Last verified May 16, 2026

Mug Club Night

Wed, Nov 25, 2026

Source: grossenbart.com · Last verified May 16, 2026

Monday Happy Hour at Grossen Bart Brewery (5–7 PM)

Mon, Nov 30, 20265:00 PM

Source: grossenbart.com · Last verified May 16, 2026

Recent Past Events at Grossen Bart Brewery

Monday Happy Hour at Grossen Bart Brewery (5–7 PM)Mon, Oct 5, 2026

Bingo/Music BingoThu, Oct 1, 2026

Mug Club NightWed, Sep 30, 2026

Open Mic NightTue, Sep 29, 2026

Monday Happy Hour at Grossen Bart Brewery (5–7 PM)Mon, Sep 28, 2026

Mug Club NightWed, Sep 23, 2026

Open Mic NightTue, Sep 22, 2026

Monday Happy Hour at Grossen Bart Brewery (5–7 PM)Mon, Sep 21, 2026

Mug Club NightWed, Sep 16, 2026

Open Mic NightTue, Sep 15, 2026

Monday Happy Hour at Grossen Bart Brewery (5–7 PM)Mon, Sep 14, 2026

🏈 NFL Sunday Ticket at Grossen Bart Brewery! 🍻Sun, Sep 13, 2026

Useless Knowledge Society Trivia NightThu, Sep 10, 2026

Mug Club NightWed, Sep 9, 2026

Open Mic NightTue, Sep 8, 2026

Other Upcoming Events Near Grossen Bart Brewery

Boy Scouts Troop 161 Leaders Meeting – Upstairs

Niwot Hall · Boulder

Tue, Oct 6, 2026

Niwot Future League Meeting

Niwot Hall · Boulder

Tue, Oct 6, 2026

Cottonwood Park HOA – Niwot Incorporation Meeting

Niwot Hall · Boulder

Tue, Oct 6, 2026

Niwot Wellness Lecture Series

Niwot Hall · Boulder

Wed, Oct 7, 2026

Rotary Club of Niwot

Niwot Hall · Boulder

Thu, Oct 8, 2026

Niwot Community Connection (Downstairs)

Niwot Hall · Boulder

Thu, Oct 8, 2026

Line Dancing Lessons with Lindy B Dance

Niwot Hall · Boulder

Thu, Oct 8, 2026

Rebuilding Seminars

Niwot Hall · Boulder

Sun, Oct 11, 2026

Boy Scouts Troop 161 Meeting

Niwot Hall · Boulder

Mon, Oct 12, 2026

Niwot Hall Meeting

Niwot Hall · Boulder

Wed, Oct 14, 2026

Links

Official Website (720) 438-2060 Instagram Facebook

Listings for Grossen Bart Brewery are compiled from public sources, each named with the site it came from and dated with the last time we read it. Details can change — confirm with the venue before you go. How we collect & verify.