PIPESTEM – Take an aerial tour on one of the best ziplines on the East Coast! Are you ready to be over 300 ft in the air, zig-zagging across the Bluestone River? The Pipestem Peaks Zipline Tour has 9 exciting zips reaching speeds of up to 50 mph. Our zips cross the Bluestone River 3 times at heights up to 350 feet. This 3.5 hour experience was developed by world-class adventure course provider Bonsai Design, Inc.