Fifteenmile Knoll Reservoir   Be the first to submit input for Fifteenmile Knoll Reservoir. If you have info on Fifteenmile Knoll Reservoir, Sweetwater County, Wyoming please submit it here to improve this web site.          These outdoors activities are available near Fifteenmile Knoll Reservoir.   Campgrounds Near Fifteenmile Knoll Reservoir: Albert's Trailer Court, Rock Springs, 16 miles away Rock Springs KOA Kampground, Rock Springs, 20 miles away   Hotels Near Fifteenmile Knoll Reservoir: Best Western Outlaw Inn, Rock Springs, 16 miles away Econo Lodge Rock Springs, Rock Springs, 16 miles away Days Inn Rock Springs, Rock Springs, 16 miles away Comfort Inn & Suites Rock Springs, Rock Springs, 18 miles away Americas Best Value Inn, Rock Springs, 18 miles away