Larry Brock talks about the Allegheny bike trail, which where a large section of the Allegheny railroad has been transformed so that it can be used by bikers and hikers. The website says that when completed, the 150-mile Great Allegheny Passage will connect with the 184.5-mile C&O Canal Towpath at Cumberland, Maryland to create a 334.5-mile traffic and motorized vehicle-free route between Pittsburgh and Washington, DC.
