Newton Reservoir   Be the first to submit input for Newton Reservoir. If you have info on Newton Reservoir, Valley County, Montana please submit it here to improve this web site.          These outdoors activities are available near Newton Reservoir.   Public Lands Near Newton Reservoir: Hell Creek State Park, Montana, 24 miles away   Marinas On or Near Newton Reservoir: Rock Creek Marina, Fort Peck, 11 miles away   Camp Grounds Near Newton Reservoir: Cottonwood Inn and RV Park, Glasgow, 8 miles away Shady Rest RV Park, Glasgow, 9 miles away Trails West Campground, Valley County, 9 miles away