Keystone Lake   Be the first to submit input for Keystone Lake. If you have info on Keystone Lake, Armstrong County, Pennsylvania please submit it here to improve this web site.          These outdoors activities are available near Keystone Lake.   Lakes Near Keystone Lake: Allegheny River Pool Eight, Armstrong County, 15 miles away   Public Lands Near Keystone Lake: Cook Forest State Park, Pennsylvania, 34 miles away   Marinas On or Near Keystone Lake: Nautical Mile Marina-Templeton, Templeton, 14 miles away Kittanning Marina, Kittanning, 16 miles away Rosston Eddy Marina, Ford City, 17 miles away   Camp Grounds Near Keystone Lake: Wheel- In Campground, Shelocta, 4 miles away Silver Canoe Campground, Rural Valley, 5 miles away   Hotels Near Keystone Lake: Super 8 Indiana, Indiana, 10 miles away Comfort Inn Indiana, Indiana, 11 miles away Hampton Inn Indiana, Indiana, 11 miles away Holiday Inn INDIANA, Indiana, 12 miles away Quality Inn & Suites Indiana, Indiana, 12 miles away   Whitewater Near Keystone Lake: Cowanshannock Creek, ArmstrongCounty, 7 miles away       Class IV - 11 miles long (Greendale to Route 66) Mahoning Creek, ArmstrongCounty, 10 miles away       Class I-II - 12.5 miles long (McCrea Furnace to Route 66)