[Still River Fiber Mill, LLC Still River Fiber Mill is a cottage industry fiber spinning mill specializing in exotics and fine fibers. Qiviut, Bison, Cashmere, Guanaco, Camel, Vicuna, Fine Wools, Alpaca, Llama, Angora, Mohair and Pet fibers are among our extensive list of fibers processed. Finished products available like rugs, throws, sweaters, hats, mittens, scarves, and socks.]