Cottonwood Spring Reservoir   Be the first to submit input for Cottonwood Spring Reservoir. If you have info on Cottonwood Spring Reservoir, Lake County, Oregon please submit it here to improve this web site.          These outdoors activities are available near Cottonwood Spring Reservoir.   Lakes Near Cottonwood Spring Reservoir: Summer Lake, Lake County, 14 miles away   Public Lands Near Cottonwood Spring Reservoir: Fort Rock State Park, Oregon, 22 miles away Fremont National Forest, Oregon, 29 miles away Lava Beds National Monument, Tulelake - CA, 68 miles away   Camp Grounds Near Cottonwood Spring Reservoir: Ana Reservoir RV Park, Summer Lake, 8 miles away