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41. Aeromagnetic map of Minnesota, west-central region, Plate 1
1987. Chandler, Val W. Total magnetic intensity anomaly (relative to the earth's magnetic field), color coded, scale 1:250,000. Interpretation of magnetic data collected...
42. Aeromagnetic map of Minnesota, west-central region, Plate 2
1987. Chandler, Val W. Total magnetic intensity anomaly, contour, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map contours (line...
43. Aggregate resource potential of Chisago County, Minnesota, M-116, Plate 1
2001. Meyer, Gary N. and Lusardi, Barbara A. Quaternary geology map showing interpretations of Quaternary (Pleistocene [glacial] and Holocene [post-glacial]) surficial geology (distribution an...
44. Aggregate resource potential of Chisago County, Minnesota, M-116, Plate 2
2001. Meyer, Gary N. and Lusardi, Barbara A. Aggregate (crushed rock, sand and gravel) sources and potential of Chisago County, scale 1:100,000.
45. Aggregate resource potential of Itasca County, Minnesota, M-131, Plate 1
2005. Meyer, Gary N., Jirsa, Mark A., and Jennings, Carrie E. Quaternary geology map showing interpretations of Quaternary (Pleistocene [glacial] and Holocene [post-glacial]) surficial geology (distribution an...
46. Aggregate resource potential of Itasca County, Minnesota, M-131, Plate 2
2005. Meyer, Gary N., Jirsa, Mark A., and Jennings, Carrie E. Aggregate (crushed rock, sand and gravel) endowment map of northwest Itasca County, scale 1:100,000.
47. Aggregate resource potential of Itasca County, Minnesota, M-131, Plate 3
2005. Meyer, Gary N., Jirsa, Mark A., and Jennings, Carrie E. Quaternary geology map showing interpretations of Quaternary (Pleistocene [glacial] and Holocene [post-glacial]) surficial geology (distribution an...
48. Aggregate resource potential of Itasca County, Minnesota, M-131, Plate 4
2005. Meyer, Gary N., Jirsa, Mark A., and Jennings, Carrie E. Aggregate (crushed rock, sand and gravel) endowment map of northeast Itasca County, scale 1:100,000.
49. Aggregate resource potential of Itasca County, Minnesota, M-131, Plate 5
2005. Meyer, Gary N., Jirsa, Mark A., and Jennings, Carrie E. Quaternary geology map showing interpretations of Quaternary (Pleistocene [glacial] and Holocene [post-glacial]) surficial geology (distribution an...
50. Aggregate resource potential of Itasca County, Minnesota, M-131, Plate 6
2005. Meyer, Gary N., Jirsa, Mark A., and Jennings, Carrie E. Aggregate (crushed rock, sand and gravel) endowment map of southeast Itasca County, scale 1:100,000.