Poston Reservoir   Be the first to submit input for Poston Reservoir. If you have info on Poston Reservoir, Sublette County, Wyoming please submit it here to improve this web site.          These outdoors activities are available near Poston Reservoir.   Public Lands Near Poston Reservoir: Shoshone National Forest, Wyoming, 24 miles away   Campgrounds Near Poston Reservoir: Ox-yoke Acres Campground, Boulder, 17 miles away Big Sandy Campground, Sublette County, 19 miles away   Hotels Near Poston Reservoir: Best Western Pinedale Inn, Pinedale, 40 miles away Hampton Inn Suites Pinedale, Pinedale, 40 miles away Baymont Inn and Suites Pinedale, Pinedale, 40 miles away Best Western Outlaw Inn, Rock Springs, 42 miles away Econo Lodge Rock Springs, Rock Springs, 42 miles away