This is a detail from the Atlas of Westchester County, a color atlas created by the G. M. Hopkins Company between 1929 and 1931. It shows landmarks, land features, businesses, and some property ownership.
The atlas is in four volumes (Volume 1: southeastern Westchester; Volume 2: south central Westchester; Volume 3: southwestern Westchester and along the Hudson River to North Tarrytown; and Volume 4: northern Westchester.)
The entire atlas is available online at Westchester.gov.
CROTON 