1992. Chandler, Val W. Aeromagnetic anomaly (total magnetic intensity anomaly (relative to the earth's magnetic field, interpretation of magnetic data collected from airb... Minnesota Geological Survey.
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1992. United States Census Bureau. This polygon data layer represents assembly districts for Wisconsin in 1992. The dataset was originally published by the Legislative Technology Ser... Legislative Technology Services Bureau.
1992. Projection: Lambert Conformal Conic Projection: Standard Parallels -76º40' and -79º20'; Series: USGS 1:50,000 Topographic Series. United States Geological Survey.
1992. Chandler, Val W. and Schaap, Brian D. Bouguer gravity anomaly map (anomaly related to different densities of rocks in the upper crust, Bouguer anomaly is a corrected difference between ... Minnesota Geological Survey.
1992. Meyer, G.N and Minnesota Geological Survey. 10 pls. Scale 1:48,000 and smaller. Pl. 1, data-base; pl. 2, bedrock geology; pl. 3, surficial geology; pl. 4, bedrock topography and Quaternary st...
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1992. Metro Data Resource Center. This line data layer represents county boundaries for Portland Metro, Oregon in 1992. The dataset was originally published by the Metro Data Resour...
1992. Metro Data Resource Center. This polygon data layer represents county boundaries for Portland Metro, Oregon in 1992. The dataset was originally published by the Metro Data Res...