The 18-hole "River Course at Keystone" at the The River Course At Keystone Resort facility in Keystone, Colorado features 6,886 yards of golf from the longest tees for a par of 71. The course rating is 70.3 and it has a slope rating of 131. Designed by Dr. Michael Hurdzan, ASGCA/Dana Fry, ASGCA, the River Course at Keystone opened in 2000.