Calamagrottis Reservoir   Be the first to submit input for Calamagrottis Reservoir. If you have info on Calamagrottis Reservoir, Sweetwater County, Wyoming please submit it here to improve this web site.          These outdoors activities are available near Calamagrottis Reservoir.   Public Lands Near Calamagrottis Reservoir: Fossil Butte National Monument, Kemmerer - WY, 49 miles away   Hotels Near Calamagrottis Reservoir: Little America Hotel, Little America, 19 miles away Oak Tree Inn Green River, Green River, 38 miles away Hampton Inn Suites Green River, Green River, 39 miles away Super 8 Green River, Green River, 39 miles away Sweet Dreams Inn, Green River, 39 miles away