If you're not familiar with the proposed Tocks Island Dam and the drastic and tragic effect it had on the area, take 40 minutes to watch this Documentary. Filmed 16 years ago by Yeti Nest Films.
"A fascinating story of the 20+ year struggle locals had to face in the midst of the looming Tocks Island Dam Project, a massive dam and reservoir on the Delaware River which would have dramatically changed the PA, NJ, and NY region as we currently know it. The film is a tribute to the locals who were affected, their sacrifices, and their rigorous efforts to fight against damming the last major free flowing river east of the Mississippi. Ghost Waters tells the dynamic story of deep history, loss, preservation, and environmental success."