Bracken, R.E. and Nicholson, S.W., 1999, Aeromagnetic Surveying in Wisconsin 1998-99: Digital data files: U.S. Geological Survey Open-File Report 99-527, 1 CD-ROM.

Cordell, Lindrith, Phillips, J.D., and Godson, R.H., 1992, U.S. Geological Survey potential-field geophysical software, version 2.0: U.S. Geological Survey Open-File Report 92-18A-G, 16 p., 6 3.5-inch diskettes. 

Dater, David, Metzger, Dan, and Hittleman, Allen, 1999, Land and Marine Gravity CD-ROMs: National Oceanic and Atmospheric Administration, National Geophysical Data Center, Boulder, CO, 2 CD-ROMs.

Defense Mapping Agency, 1974, World Relative Gravity Reference Network, North America, Part 2: St. Louis, Missouri, Aerospace Center, DMAAC Reference Publication 25, with supplement updating gravity values to the International Gravity Standardization Net 1971, 1635 p.

Geometrics, 1980a, Aerial gamma ray and magnetic survey; Minnesota Project; Alpena, Blind River, Cheboygan, Escanaba, and Sault Sainte Marie quadrangles of Michigan and Wisconsin: U.S. Department of Energy Open-File Report GJBX-39-80, 2 volumes.

Geometrics, 1980b, Aerial gamma ray and magnetic survey, Chicago Quadrangle, Indiana, Ohio, and Michigan: U.S. Department of Energy Open-File Report GJBX-31-81, 2 volumes.

Geometrics, 1981a, Aerial gamma ray and magnetic survey, Fort Wayne Quadrangle, Indiana, Ohio, and Michigan: U.S. Department of Energy Open-File Report GJBX-49-81, 2 volumes.

Geometrics, 1981b, Aerial gamma ray and magnetic survey, Racine and Grand Rapids quadrangles, Wisconsin, Illinois, and Michigan: U.S. Department of Energy Open-File Report GJBX-237-81, 2 volumes.

Geometrics, 1981c, Aerial gamma ray and magnetic survey, Milwaukee and Midland quadrangles, Wisconsin and Michigan: U.S. Department of Energy Open-File Report GJBX-268-81, 2 volumes.

Geometrics, 1981d, Aerial gamma ray and magnetic survey, Detroit Quadrangle, Michigan: U.S. Department of Energy Open-File Report GJBX-238-81, 2 volumes.

Geometrics, 1981e, Aerial gamma ray and magnetic survey, Tawas City and Flint Quadrangles, Michigan: U.S. Department of Energy Open-File Report GJBX-239-81, 2 volumes.

Geometrics, 1981f, Aerial gamma ray and magnetic survey, Toledo Quadrangle, Ohio and Michigan: U.S. Department of Energy Open-File Report GJBX-209-81, 2 volumes.

Geometrics, 1981g, Aerial gamma ray and magnetic survey, Manitowoc and Traverse City quadrangles, Wisconsin and Michigan: U.S. Department of Energy Open-File Report GJBX-270-81, 2 volumes.

Hill, P.T., 1991, Bibliographies and location maps of publications on aeromagnetic and aeroradiometric surveys for the states east of the Mississippi River and north of the Ohio and Potomac Rivers: U.S. Geological Survey Open-File Report 91-370-C, 104p.

Hittleman, A.M., Habermann, R.E., Dater, D.T., and Di, Liping, 1992, Gravity, Earth systems data: National Oceanic and Atmospheric Administration, National Geophysical Data Center, Boulder, CO, 1 CD-ROM.

International Union of Geodesy and Geophysics, 1971, Geodetic Reference System 1967: International Association of Geodesy Special Publication no. 3, 116 p.

Klasner, J.S., Wold, R.J., Hinze, W.J., Bacon, L.O., O'Hara, N.W., and Berkson, J.M., 1979, Bouguer gravity anomaly of the northern Michigan-Lake Superior region: U.S. Geological Survey Geophysical Investigations Map GP-930, scale 1:1,000,000, 1 sheet

Morelli, Carlo, ed., 1974, The International Gravity Standardization Net 1971: International Association of Geodesy Special Publication No. 4, 194 p.

O'Hara, N.W., 1981, Great Lakes regional gravity and magnetic map sequence: Geological Society of America Map and Chart Series MC-41, scale 1:2,500,000, text 12 p., 3 sheets

Plouff, Donald, 1977, Preliminary documentation for a FORTRAN program to compute gravity terrain corrections based on topography digitized on a geographic grid: U.S. Geological Survey Open-File Report 77-535, 45 p.

U.S. Geological Survey, 1999, Digitized aeromagnetic datasets for the conterminous United States, Hawaii, and Puerto Rico: U.S. Geological Survey Open-File Report 99-0557, 1 DVD, available also at URL https://pubs.usgs.gov/of/1999/ofr-99-0557/html/mag_home.htm.

U.S. Geological Survey, 2002, Digital aeromagnetic datasets for the conterminous United States and Hawaii; a companion to the North American magnetic anomaly map: U.S. Geological Survey Open-File Report 02-361, 1 DVD, available also at URL  https://pubs.usgs.gov/of/2002/ofr-02-361/.

Webring, Michael, 1981, MINC, a gridding program based on minimum curvature: U.S. Geological Survey Open-File Report 81-1224, 43 p.

Wold, R.J. and Berkson, J.M., 1977, Bouguer gravity anomaly map of Lake Superior: U.S. Geological Survey Miscellaneous Field Studies Map, MF-884, scale 1:500,000, 1 sheet

Zietz, Isidore, Kirby, J.R., Hinze, W.J., O'Hara, N.W., and Kellogg, R.L., 1974, Aeromagnetic Map of Michigan and the adjacent Great Lakes: U.S. Geological Survey Geophysical Investigations GP-894 map scale 1:1,000,000, 1 sheet