SR-821, which winds its way along the Yakima River between Yakima and Ellensburg, and along which Roza Recreation Area is located, travels through Yakima River Canyon. There are hills located to the west and east of our location.

We noticed what appeared to be smoke at the base of the hills to the east across the road. It turned out to be dust from some rock slides. I got out the binoculars so I could see the rock slides better and discovered the reason for the rock slides: several groups of Big Horn Sheep walking along the sides of the hills while they were grazing!