Brookhaven ARMS '60 (CT-MA-RI-NY)

Survey type M-Dz (magnetic; digitized from contour maps)
Flown by U.S. Geological Survey
Date flown 10/59-11/59
Line spacing 1.6 (km)
Altitude 152.4 (m) above ground
Total distance 7,563 (km)
References
Counties Columbia - Dutchess - Ulster
Overlapping surveys

Data: Magnetic (M-Dz)