Aeromagnetic map, Kittson County, Minnesota

Aeromagnetic map, of the Shambo quadrangle, Bearpaw Mountains, Montana

Aeromagnetic map, Laredo quadrangle, Bearpaw Mountains, Montana

Aeromagnetic map of the Copper River basin, Alaska

Aeromagnetic map, Caldwell quadrangle, Essex and Morris Counties, New Jersey

Aeromagnetic map of part of the Yelm quadrangle, Thurston and Lewis Counties, Washington

Aeromagnetic map, Littleton and vicinity, New Hampshire and Vermont

Aeromagnetic map of the Kerby and part of the Grants Pass quadrangles, Josephine and Curry Counties, Oregon

Aeromagnetic map, East Greenville quadrangle, Berks, Lehigh, and Montgomery Counties, Pennsylvania

Aeromagnetic map, Perkiomenville quadrangle, Montgomery and Bucks Counties, Pennsylvania

Aeromagnetic map, Manatawny quadrangle, Berks County, Pennsylvania

Aeromagnetic map, Birdsboro quadrangle, Berks County, Pennsylvania

Aeromagnetic map of part of the Lumberville quadrangle, Bucks County, Pennsylvania, and Hunterdon County, New Jersey

Aeromagnetic map, Lebanon quadrangle, Lebanon County, Pennsylvania

Aeromagnetic map of the Lititz quadrangle, Lancaster and Lebanon Counties, Pennsylvania