Marcus Reservoir   Be the first to submit input for Marcus Reservoir. If you have info on Marcus Reservoir, Niobrara County, Wyoming please submit it here to improve this web site.          These outdoors activities are available near Marcus Reservoir.   Public Lands Near Marcus Reservoir: Agate Fossil Beds National Monument, Harrison - NE, 59 miles away   Hotels Near Marcus Reservoir: Americas Best Value Inn, Lusk, 28 miles away Best Western Pioneer, Lusk, 28 miles away Auto Inn Motel, Newcastle, 39 miles away Fountain Inn, Newcastle, 41 miles away