New England states aeromagnetic and gravity maps and data

Online link http://pubs.usgs.gov/of/2004/1258/
Description Aeromagnetic surveys of New England, merged to form seamless grids across the state. Gravity anomaly data are provided as well. Data provided in a variety of formats.
Originators Daniels, David L. and Snyder, Stephen L.
Publication U.S. Geological Survey Open-File Report 2004-1258
Reduced-size image of the entire mapped area, with legend
Reduced-size image of the entire mapped area, with legend
Additional images
Large image of the mapped area
https://pubs.usgs.gov/of/2004/1258/Images/NE_mag_200dpi_opt.jpg