Looks like most of them in that area are across the river in Ontario Canada. Google "Thousand Islands Quilt Shops" and you will get some hits. Here is a link to the map I got for them.
https://maps.google.com/maps?hl=en&g...g&ved=0CCoQtgM
Unfortunately, our Canadian friends have told us the prices are much higher across the border. Perhaps you might prefer to go visit Boldt Castle or some of the other fun attractions in the area.