Early in Jan., 1778, John Sloss Hobart, Henry Wisner, John Hathorn, and Zeph. Platt, delegated for that purpose by the State Congress, Generals Putnam and George Clinton, the Lieut. Col. of Engineers, Capt. Machin, and several other military gentlemen, met at Poughkeepsie, to consult about fortifying and obstructing the Hudson; and the works located at and near West Point, were placed there in accordance with their views. Generals Schuyler, Lee, Sterling, and a few other officers, were also consulted on some occasions, about fortifying the river.

Iron mine activity deforested great areas of the mountains around Warwick.