Duncan Reservoir   Be the first to submit input for Duncan Reservoir. If you have info on Duncan Reservoir, Lake County, Oregon please submit it here to improve this web site.          These outdoors activities are available near Duncan Reservoir.   Lakes Near Duncan Reservoir: Summer Lake, Lake County, 18 miles away   Public Lands Near Duncan Reservoir: Fort Rock State Park, Oregon, 18 miles away Fremont National Forest, Oregon, 33 miles away Neskowin Beach State Park, Oregon, 37 miles away Lava Beds National Monument, Tulelake - CA, 67 miles away   Hotels Near Duncan Reservoir: Best Western Newberry Station, La Pine, 49 miles away