Coykendall Lodge is a historic home, now in ruins, located at Hardenburgh in Ulster County, New York. It is located on the shores of Alder Lake in the Balsam Lake Wild Forest, part of the Catskill Forest Preserve. It was built in 1899 and was a large, rambling 2+1⁄2-story half-timber lodge of balloon frame construction. It rests on a limestone foundation and is representative of the Shingle Style.