Horn growth on dall sheep rams becomes visible when the young males are around three years old.
Dall sheep, sometimes called Dall's sheep, are the northernmost species of wild sheep in North America. These white sheep range along the western slopes of the Chigmit Mountains along the boundary of the park and preserve. There are about 600 animals in the Lake Clark area. For more information on Dall sheep, visit the State of Alaska's wildlife notebook sheep page.
