Massachusetts Coop '62 (MA-NY-VT)

Survey type M-Dz (magnetic; digitized from contour maps)
Flown by U.S. Geological Survey
Date flown 08/62
Line spacing 0.8 and 1.6 (km)
Altitude 152.4 (m) above ground
Total distance 1,263 (km)
References
Counties Berkshire - Franklin - Hampden - Hampshire - Columbia - Rensselaer - Bennington
Overlapping surveys

Data: Magnetic (M-Dz)