Don't know if you already found some, but we raise purebred Icelandic sheep in Wyoming. We never vaccinate, supplement as little as possible, and rotational graze during the summer. We've got both polled and horned lines, and have worked hard to select for dairy and fleece strength in particular. We don't have many left available this year, but we should have a good number next year. You can check out our
Website if you want to learn more about our farm.