I know a shop in Colorado City which I think is about a 2 hr drive from Denver. The name of the shop is Kelly J's. It was a cute little shop when it was located in northern Minnesota. She moved out to the west. If you are in that area, it is worth a look although I haven't been out to see it. She provided a lot of classes when it was located here and also serviced machines. She moved because she "got an offer she couldn't refuse as someone wanted the land she had. Also worked with horses and corgis.