Join Now

Become a member today to support our mission and enjoy the many benefits!

Simply select a level below to become a member.  Please allow 7-10 business days for us to process your membership and mail your materials.

If you have questions, please contact our membership office at (303) 866-3639 or membership@state.co.us.

Give the gift of a History Colorado membership this holiday season! Click "Give this membership as a gift" next to the level you'd like to give. Give this gift by Dec. 15 so the recipient can be sure to see the "Holy Grail" of baseball cards on display Dec. 26-30.