Aeromagnetic map of part of the Salem Depot quadrangle, Rockingham County, New Hampshire, and Essex County, Massachusetts [map] / ...compiled by the U.S. Geological Survey ; prepared in part in cooperation with the Commonwealth of Massachusetts Department of Public Works

Corporate Author: Geological Survey (U.S.)
Additional Titles: Haverhill quadrangle, Massachusetts-New Hampshire, aeromagnetic map
Published: Washington, D.C. : The Survey, 1970.
Physical Description: 1 map ; 58 x 43 cm, folded in envelope 30 x 24 cm.
Additional Creators: Massachusetts. Department of Public Works