The New Hampshire Division of Parks and Recreation : Flume Gorge & Visitor Center The New Hampshire Division of Parks and Recreation Discovered in 1808, the Flume is a natural gorge extending 800 feet at the base of Mount Liberty. The walls of Conway granite rise to a height of 70 to 90 feet and are 12 to 20 feet apart. A trip into the Flume begins and ends at the Flume Visitor's Center. Guests can choose to walk through just the Gorge or do a two mile loop. The walk includes uphill walking and lots of stairs. Flumegorge.com~Site InfoWhoisTrace RouteRBL Check