Dewey Lake   Be the first to submit input for Dewey Lake. If you have info on Dewey Lake, Cherry County, Nebraska please submit it here to improve this web site.          These outdoors activities are available near Dewey Lake.   Public Lands Near Dewey Lake: Niobrara National Scenic River, O'Neil - NE, 18 miles away   Camp Grounds Near Dewey Lake: Fishberry Campgrounds, Valentine, 6 miles away Merritt Trading Post Resort, Valentine, 6 miles away Riverside RV Park and Campground, Valentine, 6 miles away Valentine KOA, Valentine, 6 miles away   Hotels Near Dewey Lake: Super 8 Valentine NE, Valentine, 17 miles away Trade Winds Lodge, Valentine, 17 miles away Dunes Lodge and Suites, Valentine, 18 miles away Comfort Inn Valentine, Valentine, 18 miles away Quality Inn Rosebud Casino, Mission, 24 miles away   Whitewater Near Dewey Lake: Snake River, CherryCounty, 17 miles away       Class III - 0.5 miles long (Snake Falls)