Rebecca, I remember a previous post that a visitor found storage at the bus station, so I called to see if still available, and it is. Lockers are $3 for the first hour and $1 per hour after that. It's difficult to find storage short term because of security/liability, esp. since 9/11. If you are staying at a hotel, they will often keep your luggage for you short term.
There is a luggage storage service a short one minute walk from Union Station in downtown Denver - LUGDEN. You can make a reservation online - lugden.com, call - (303) 747-5600, or show up as a walk-in. They offer hourly, day, overnight and weekly bag storage. Great place to store your luggage if you're on a layover from Denver International Airport, or going to a concert, or headed to a Rockies game at Coors field and want to enjoy yourself without having to lug your bags around.
LOCKERS ARE USED AT RENTER’S OWN RISK. THE OPERATOR (INCLUDING EMPLOYEES, AGENTS, AND/OR CONTRACTORS OF THE OPERATOR, THE EVENT AND THE VENUE) DISCLAIMS ANY AND ALL LIABILITY FOR ANY ITEMS STORED WITHIN THE LOCKERS OR THE LOCKER FACILITY, INCLUDING LOSSES RESULTING FROM LOCK FAILURE, RIOTS, VANDALISM, WEATHER, LOCKER ACCESSED BY OTHERS, COMBINATION ACCESSED BY OTHERS, THEFT, OR FAILURE TO COLLECT THE ARTICLES AFTER USE.
Recreational Sports offers a variety of spaces available for open recreation use. Open recreation is defined as use of existing equipment and facility spaces for self-directed activities by individuals or small groups of no more than 4 individuals at any given time. Open recreation participants must adhere to all facility policies and procedures which includes allowing other participants to join in the activity or use of the space. Participation in open recreation is not structured, organized or teams/groups of 5 or more. Events or activities for groups of 5 or more which require use of a space must be scheduled and approved in advance by Recreational Sports staff. Any activity (by individuals or groups) which includes coaching/instruction or music/amplified sound must also be scheduled and approved in advance by Recreational Sports staff. Please see our Facility Rental page for more information.