Information on Rimrock Lake boat rentals, jet skis, water sports, and boat tours at this lake along the course of the Tieton River, in Yakima County, Washington State. The lake is used as a storage reservoir and also recreation for visitor who enjoy hiking, swimming, boating, water skiing, tubing, wake surfing, water skiing, wakeboarding, camping and more. Enjoy camping at the Rimrock Lake Resort and marina and book your watercraft rentals and charter services with Invert Sports.