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    Pearl
    Mountain Sun Pub & Brewery, Bar in Boulder
    Bar150Points

    Mountain Sun Pub & Brewery

    Central Boulder, Boulder

    Bar in Boulder, United States

    Why go

    Mountain Sun Pub & Brewery is a casual Pearl Street choice for beer-led gatherings, low-pressure dates, relaxed group plans in Boulder. Treat it as a pub-and-brewery stop rather than a polished special-occasion dinner; for a more formal meal, compare it with Frasca Food and Wine or Bramble & Hare Bistro.

    About Mountain Sun Pub & Brewery

    Mountain Sun Pub & Brewery is a casual venue in Boulder. The verified basics are limited: the listed dress code is casual, the posted hours run from midday to late evening on most days, with Friday listed until 12 AM and Saturday opening at 11 AM. Beyond those basics, specific details about menu, service style, reservations, seating, pricing, awards, or ownership are not verified here.

    A casual Boulder pub and brewery listing

    The safest way to plan around Mountain Sun Pub & Brewery is to treat it as a casual Boulder stop rather than a formal dining recommendation. The venue name indicates a pub and brewery, but no verified cuisine, chef, menu format, award history, price point, or beverage details are available in this data. If those specifics matter for your visit, confirm them directly with the venue before making plans.

    For timing, the verified hours are direct: Monday through Thursday are listed as 12–11 PM, Friday as 12 PM–12 AM, Saturday as 11 AM–11 PM, Sunday as 12–11 PM. The casual dress code also makes it a lower-formality choice than a dressed-up occasion plan.

    How to compare it with other options

    Use Mountain Sun Pub & Brewery when the known details you need are a Boulder location, casual dress, the posted operating hours. If you are deciding between multiple venues, compare those basics with Bramble & Hare Bistro, Frasca Food and Wine, Gemini, License No. 1, or The Corner Bar based on the current needs of your group and the latest information from each venue.

    The practical read: this is a casual Boulder listing with verified hours and dress code, but not enough verified information here to make claims about cuisine, price, reservations, seating, service format, awards, or specific menu strengths. Check the venue's official channels for anything beyond the basics.

    The takeThis is a place built for casual socializing and group outings within Boulder’s pedestrian Pearl Street corridor. Its identity as a long-standing brewpub and part of a dense tap scene makes it a natural stop on a deliberate walking circuit of local breweries. The atmosphere supports easy conversation and communal visiting rather than formal dining or cocktail-focused nights. Bring friends for a low-key evening of sampling rotating beers, or pop in between other neighborhood stops to soak up an authentic local brew scene.
    Venue detailsCommunal Tables
    Also considerAlternatives
    Bar contextBoulder, United States
    Explore BoulderNearby

    Planning details

    Location
    1535 Pearl St, Boulder, CO 80302
    Website
    mountainsunpub.com
    Phone
    +1 303 546 0886
    Around this placeMore Pearl picks
    The take

    The Take

    The Vibe

    Mountain Sun reads like a neighborhood institution rather than a polished cocktail bar. The room smells of grain and the light runs warm and low; walls carry years of flyers and community detritus that feel genuine rather than curated. Conversation moves easily over low‑fi music, and the overall approach privileges the tap list and consistent beer over any sense of pretension. It sits squarely in an older, community-driven strand of Boulder's brewing culture — a comfortable, unvarnished spot where regulars and visitors alike come for straightforward, well-made beer and relaxed company.

    Best For

    This is a place built for casual socializing and group outings within Boulder’s pedestrian Pearl Street corridor. Its identity as a long-standing brewpub and part of a dense tap scene makes it a natural stop on a deliberate walking circuit of local breweries. The atmosphere supports easy conversation and communal visiting rather than formal dining or cocktail-focused nights. Bring friends for a low-key evening of sampling rotating beers, or pop in between other neighborhood stops to soak up an authentic local brew scene.

    Ordering Tips

    Prioritize the taps: Mountain Sun emphasizes rotating seasonal pours over flagship permanence, so ask the staff about what's currently on rotation. The description positions the pub as beer-first rather than cocktail-forward, so opt for whatever the brewery is featuring that day to get a sense of its seasonal program. Because the place trades on consistency and local brewing identity, lean into the draft list and seek out any specialty or limited brews that reflect the brewery’s current offerings.

    Venue details

    Ambiance

    Comfortable living room-like atmosphere with eclectic, community-focused vibe emphasizing conversation over TVs.

    Tags

    Vibe

    LivelyCozyRustic

    Best For

    Group OutingCasual Hangout

    Experience

    Live MusicBeer Garden

    Format

    Communal Tables

    At the Bar

    Bar Category
    Pub
    Late Night
    Closes by Midnight
    Music
    Live Bands on Friday Nights
    Live Music
    Yes
    Planning details

    Location

    1535 Pearl St, Boulder, CO 80302 · Directions

    +1 303 546 0886

    mountainsunpub.com

    Also consider

    Also Consider

    • Frasca Food and Wine, Notable alternative
    • Bramble & Hare Bistro, Notable alternative
    • The Corner Bar, Notable alternative
    • License No. 1, Notable alternative
    • Gemini, Notable alternative
    Bar context

    How it compares in Boulder

    Frasca Food and Wine is the splurge-minded alternative: choose it when the meal itself is the event and the room needs more polish. Mountain Sun Pub & Brewery is the lower-pressure call for beer drinkers and casual groups, with easier energy and less ceremony.

    Bramble & Hare Bistro and Gemini are stronger cross-shops for a dinner-centered evening. Bramble & Hare Bistro reads more intimate; Gemini is the better fit when the group wants a restaurant-first plan. Pick the brewery when the night is more about hanging out than pacing a full dinner.

    The Corner Bar and License No. 1 sit closer in the drinks-first lane. The Corner Bar is the more conventional hotel-bar style choice, while License No. 1 is the better pick for cocktail intent. Mountain Sun Pub & Brewery wins for a casual beer-focused Boulder stop.

    Explore Boulder
    Around this place
    Read more on Pearl

    Discover more on Pearl

    Unlock the full Mountain Sun Pub & Brewery guide in Pearl, including awards, comparisons, FAQs, planning details, and nearby places.

    Compare Mountain Sun Pub & Brewery
    Mountain Sun Pub & Brewery Boulder and similar venues
    VenueLocationAwards
    Mountain Sun Pub & BreweryBoulderNo published awards
    Frasca Food and WineBoulderNo published awards
    Bramble & Hare BistroBoulderNo published awards
    The Corner BarBoulderNo published awards
    License No. 1BoulderNo published awards
    GeminiBoulderNo published awards

    How Mountain Sun Pub & Brewery Boulder compares with similar nearby venues.

    FAQ

    Frequently Asked Questions

    What's the crowd like at Mountain Sun Pub & Brewery?

    The verified dress code is casual, but no specific crowd description is verified here. Plan for a casual Boulder venue and check the venue's current channels if atmosphere is important to your visit.

    Is Mountain Sun Pub & Brewery open late?

    The verified hours list Monday through Thursday as 12–11 PM, Friday as 12 PM–12 AM, Saturday as 11 AM–11 PM, Sunday as 12–11 PM.

    What's the best time to go to Mountain Sun Pub & Brewery?

    The verified hours are Monday through Thursday 12–11 PM, Friday 12 PM–12 AM, Saturday 11 AM–11 PM, Sunday 12–11 PM. No verified information is available here about wait times, peak periods, or seating availability.

    Is Mountain Sun Pub & Brewery good for a date?

    It may fit a casual Boulder outing, especially given the verified casual dress code, but no specific atmosphere or service details are verified here. For comparison planning, you might also look at License No. 1, Gemini, or Frasca Food and Wine based on current information from each venue.