Neff Reservoir   Be the first to submit input for Neff Reservoir. If you have info on Neff Reservoir, Natrona County, Wyoming please submit it here to improve this web site.          These outdoors activities are available near Neff Reservoir.   Lakes Near Neff Reservoir: Firnekas Reservoir, Natrona County, 6 miles away Chocolate Reservoir, Natrona County, 19 miles away   Hotels Near Neff Reservoir: Super 8 Casper/West, Casper, 44 miles away CASPER HILTON GARDEN INN, Casper, 44 miles away Best Western Ramkota Hotel, Casper, 45 miles away Hampton Inn Suites Casper, Casper, 45 miles away Quality Inn & Suites, Casper, 45 miles away