Join us at Mustard’s Last Stand on Tuesday, April 21, 2026 for lunch at 12pm! 

As part of Historic Boulder, Inc. ‘s continuing campaign to celebrate legacy businesses, we invite members and friends to partake of the legendary hotdogs at Mustard’s.  No sign up required…just come and enjoy a hot dog among friends! 

Founded in 1978, Mustard’s puts a Colorado twist on the Chicago-style hotdog.  Some longtime Boulderites may remember Bush’s Drive-In, Mustard’s predecessor at the same spot.  Mustard’s time at the current location is limited because the City of Boulder plans to raze the Park Central Building, which houses Mustard’s, as part of its flood mitigation efforts and the move to the Broadway and Balsam Municipal Campus.