Jolly Bob Downs Reservoir   Be the first to submit input for Jolly Bob Downs Reservoir. If you have info on Jolly Bob Downs Reservoir, Harmon County, Oklahoma please submit it here to improve this web site.          These outdoors activities are available near Jolly Bob Downs Reservoir.   Hotels Near Jolly Bob Downs Reservoir: Days Inn Erick, Erick, 17 miles away Premier Inn and Suites, Erick, 17 miles away Econo Lodge Shamrock, Shamrock, 25 miles away Holiday Inn Express Hotel & Suites SHAMROCK NORTH, Shamrock, 25 miles away Sleep Inn & Suites, Shamrock, 25 miles away