Hi Margaret, I think you have the names of the ones I know about in Boulder, but about 20 miles north of Boulder iin Longmont is the Quilt Colorado 2014 conference going on at the time you mentioned. Go to their webpage for info, I know there are venders there and also free lectures available even to walk-in visitors on Thursday. Several shops in the surrounding area also. Go to Row by Row for info on Scottsbluff. At least one shop there, don't know about Breckenridge. Have a good trip. Kathy in NE Colo