New York Walk Book, 1923 A map from the "pocket edition" of the New York Walk Book, released in 1923 by the American Geographical Society. The publication featured three primary walking routes in the Croton area: - Salt Hill Route—Croton to Croton Lake Station - Croton Lake Region—Harmon to Millwood - Montrose to Harmon via Spitzenberg and Keg Mountains The guidebook included detailed pen-and-i…