Approximately 240 years ago something extraordinary occurred in the Hudson Valley. This short book, Courtesy of The Historical Society of Newburgh Bay and the Highlands, tells an incredible story of the history of the Great Chains and how they came to be and what happened to them afterward. Other photos included show the Chain today at Trohy Point, West Point. Also included are photos of the Chain and Logs used across the Hudson and the Chevaux-De-Frize which were square wooden stakes with metal spikes to penetrate the hulls of ships coming up the Hudson.
Another read on the subject including original letters and correspondence by Edward M. Ruttenber noted local historian. “Obstructions to the Navigation of Hudson’s River”: