Denison Reservoir   Be the first to submit input for Denison Reservoir. If you have info on Denison Reservoir, Washington County, Oregon please submit it here to improve this web site.          These outdoors activities are available near Denison Reservoir.   Lakes Near Denison Reservoir: Timothy Lake, Clackamas County, 6 miles away Bastion Reservoir, Washington County, 7 miles away Lake Oswego, Clackamas County, 16 miles away Sturgeon Lake, Columbia County, 19 miles away Willamette Falls Hydroelectric Power Reservoir, Clackamas County, 20 miles away   Public Lands Near Denison Reservoir: Bald Peak State Park, Oregon, 11 miles away Molalla River State Park, Oregon, 13 miles away Tryon Creek State Park, Oregon, 16 miles away   Marinas On or Near Denison Reservoir: Aquaticus Saltwater Aquariums, Portland, 11 miles away Marina Way Moorage, Portland, 14 miles away Fred's Marina, Portland, 14 miles away Happy Rock Moorage, Portland, 16 miles away Rocky Pointe Marina, Portland, 16 miles away   Camp Grounds Near Denison Reservoir: Pine Ridge Park, Beaverton, 5 miles away Champoeg State Park, -blank-, 6 miles away Roamer's Rest RV Park, Tualatin, 7 miles away Washington County Fair Grounds, Hillsboro, 9 miles away   Hotels Near Denison Reservoir: The Allison Inn and Spa, Newberg, 4 miles away Newberg Travelodge Suites, Newberg, 5 miles away Best Western Newberg Inn, Newberg, 5 miles away Americas Best Inns-Portland Aloha, Aloha, 7 miles away BEST WESTERN PLUS Northwind Inn & Suites, Tigard, 7 miles away   Whitewater Near Denison Reservoir: Whitewater Outfitter - YD Adventures, WashingtonCounty, 9 miles away       Whitewater outfitter Whitewater Outfitter - Reachout Expeditions, ClackamasCounty, 14 miles away       Whitewater outfitter Whitewater Outfitter - Portland River Company, MultnomahCounty, 17 miles away       Whitewater outfitter   Golf Courses Near Denison Reservoir: Chehalem Glenn Golf Course, Newberg, 4 miles away