Aeromagnetic map of part of the Ossining quadrangle and the Mount Kisco quadrangle, Westchester County, New York, and Fairfield County, Connecticut
By: Department of the Interior, United States Geological Survey ; prepared in cooperation with the State of Connecticut Geological and Natural History Survey.
Contributors: State Geological and Natural History Survey of Connecticut.
Series: Geophysical investigations -- map GP-820.; Geophysical investigations (Geological Survey (U.S.)) -- GP- 820.
Publisher: The Survey
Place of publication: Washington, D.C
Format: Map
Subjects: Geomagnetism -- New York (State) -- Westchester County -- Maps.; Geomagnetism -- Connecticut -- Fairfield County -- Maps.
Genres: Maps.
Other titles: Ossining quadrangle, part of, New York-Connecticut, aeromagnetic map.; Mount Kisco quadrangle, New York, aeromagnetic map.
Notes: Relief shown by spot heights.

Includes index map.

"Aeromagnetic survey ... flown at 400 feet above ground, 1958 and 1966."