Colorado Quilting Council publishes a great monthly newsletter, Colorado Threads. It lists a directory of quilt stores all over the state. It would be current. PM with your snail address, and I will send you a photocopy of the directory.
Or you can Google Colorado Quilting Council. Once the web site comes up, click the contact box and a listing will come up. Click the contact for the newsletter and see if a copy of the directory can be sent to you.