Constitution Day

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More events in Boulder and in the same category.

• Sat

  5

  Sep
  BoulderConcert

  Black Flag

  Sep 5, 20268:00 PM

  Fox Theatre, 1135 13th St

  Punk legends Black Flag play the Fox Theatre in Boulder.

  Tickets

  Source: Z2 Entertainment — Fox Theatre
• Sat

  5

  Sep
  BoulderSports

  Buffs Invitational: Colorado Buffaloes Womens Volleyball vs New Mexico Lobos Womens Volleyball

  Sep 5, 20266:00 PM

  CU Events Center

  Buffs Invitational: Colorado Buffaloes Womens Volleyball vs New Mexico Lobos Womens Volleyball at CU Events Center, Boulder, Colorado. Tickets and details on Ticketmaster.

  Source: Ticketmaster
• Sat

  5

  Sep
  BoulderExhibit

  Design/HEALth Exhibition

  Sep 5 – Sep 23, 2026All day

  Fulginiti Gallery

  This exhibition showcases Design/HEALth work by students from the College of Architecture and Planning at CU Denver and the Department of Environmental Design at CU Boulder. The Design/HEALth initiative at the University of Colorado aims to improve design at every scale – from the home to the biome – to enhance the health and wellbeing of all people and our planet. To accomplish this, we bring together design and health professionals situated at the intersection of these fields including doctors…

  Daily

  Source: CU Boulder events
• Sat

  5

  Sep
  BoulderCommunity

  Panhellenic Council Fall 2026 Recruitment

  Sep 5 – Sep 8, 2026All day

  CU Boulder

  Register for sorority recruitment by Sunday, Aug. 23 at 11:59 p.m. to participate in recruitment. If you're looking for a group of lifelong friends on campus, consider joining Greek life! Fraternity & Sorority Life's Panhellenic Council represents nine sorority chapters and three associate chapters, making it the largest women’s organization on campus with more than 3,000 members. When you join a Panhellenic sorority, you join a group of people who can connect you to mentors, provide spaces to b…

  Daily

  Source: CU Boulder events
• Sat

  5

  Sep
  BoulderCommunity

  Cruiser guided Ebike Tour of Boulder

  Sep 5 – Sep 23, 202610:30 AM

  700 Dellwood avenue

  Colorado eBike tours are run on a balance of entertainment and professionalism (and two fat-tire wheels). We operate daily, two hour, guided tours in Denver and Boulder. Our loops utilize bike lanes and bike paths that connect you through the historic areas and iconic sites, stopping along the way to learn interesting facts and capture some photos. These e-Bike tours are perfect for anyone looking to explore the outdoors and understand the layout of the town (to explore more later). With an E-bi…

  Daily, 10:30 AM

  Source: CU Boulder events
• Sat

  5

  Sep
  BoulderFilm

  Double Feature: The Incredible Sun & One Sky

  Sep 5, 20261:00 PM

  Fiske Planetarium and Science Center

  Join us for our family-friendly Double Features where we combine our favorite fulldome shows. The Incredible Sun - Every second the Sun emits million times more energy than the world consumes every year. Where does such a huge amount of power come from? Discover our star through the breathtaking timelapses. Thanks to the real images taken by the Solar Dynamics Observatory and processed by advanced mathematical methods, you will experience the true nature of the Sun and find out that it is far fr…

  Source: CU Boulder events