We parked our truck upon seeing the herd and joined a few other park visitors who watched, recorded, and photographed the sheep as they lazily grazed from one food source to another. The tallest of these sheep stood about 4 feet if measured to the tops of their heads. They seemed noticeably smaller than the Rocky Mountain Bighorn Sheep I'd observed in northern parts of Utah.
One of these days I'll have to go back down to Zion when the sheep are rutting so I can capture some action photos of the big boys ramming heads to impress the girls. This little herd was quite calm during our observation. No one ram was trying to dominate another.