Map of the Catskill Mountain region showing positions of the ice front during the glacial retreat
- Companion text: Glacial geology of the Catskills / John Lyon Rich. New York. State Museum. Bulletin 299; 1935. 180p. 1 pl. Relief shown by form lines. Map is plate 2 accompanied by plate 1: Map of glacial geology of the Catskill Mountains.
- Albany, N.Y. : University of the State of New York, New York State Museum, 1930.
- Glaciology, Glacial epoch, and Catskill Mountains (N.Y.),Maps
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