Portal:Hudson Valley/Did you know/59

• ... that after Moses Collyer built his retirement home (pictured) in Chelsea, New York, he cowrote the definitive history of the sail era in Hudson River navigation?
• ... that unlike other Dutch Colonial stone houses in the Hudson Valley, the Wynkoop House has no stone with the builder's initials?
• ... that the Great Swamp in Putnam and Dutchess County, New York is one of the largest wetlands in the state?