Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines of equal magnetic intensity) indicate the distribution and concentration of magnetic minerals (primarily iron-bearing) within the upper crust of the earth. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn21118.pdf
Meyer, Gary N.; Jirsa, Mark A.; Jennings, Carrie E.
Date Created:
2005
Description:
Quaternary geology map showing interpretations of Quaternary (Pleistocene [glacial] and Holocene [post-glacial]) surficial geology (distribution and type of materials at the land surface), of northeast Itasca County, scale 1:100,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22542.pdf
Meyer, Gary N.; Jirsa, Mark A.; Jennings, Carrie E.
Date Created:
2005
Description:
Quaternary geology map showing interpretations of Quaternary (Pleistocene [glacial] and Holocene [post-glacial]) surficial geology (distribution and type of materials at the land surface), of southeast Itasca County, scale 1:100,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22544.pdf
Meyer, Gary N.; Jirsa, Mark A.; Jennings, Carrie E.
Date Created:
2005
Description:
Aggregate (crushed rock, sand and gravel) endowment map of southeast Itasca County, scale 1:100,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22545.pdf
Meyer, Gary N.; Jirsa, Mark A.; Jennings, Carrie E.
Date Created:
2005
Description:
Aggregate (crushed rock, sand and gravel) endowment map of northeast Itasca County, scale 1:100,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22543.pdf
Meyer, Gary N.; Jirsa, Mark A.; Jennings, Carrie E.
Date Created:
2005
Description:
Quaternary geology map showing interpretations of Quaternary (Pleistocene [glacial] and Holocene [post-glacial]) surficial geology (distribution and type of materials at the land surface), of northwest Itasca County, scale 1:100,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22540.pdf
Meyer, Gary N.; Jirsa, Mark A.; Jennings, Carrie E.
Date Created:
2005
Description:
Aggregate (crushed rock, sand and gravel) endowment map of northwest Itasca County, scale 1:100,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22541.pdf
Compilation of interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments), mineral exploration data, western Vermilion district, scale 1:48,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22495.pdf
Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments), northeastern Itasca County, scale 1:48,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22462.pdf
Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments), north-central Minnesota, scale 1:250,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22461.pdf
Jirsa, Mark A.; Setterholm, Dale R.; Bloomgren, Bruce A.; Bauer, Emily J.; Lively, R.S.
Date Created:
2005
Description:
Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments), drillhole and outcrop data base map (data used to develop interpretations of bedrock units), eastern half Mesabi Iron range, scale 1:100,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22574.pdf
Jirsa, Mark A.; Setterholm, Dale R.; Bloomgren, Bruce A.; Bauer, Emily J.; Lively, R.S.
Date Created:
2005
Description:
Bedrock topography (elevation of the bedrock surface) map, eastern half Mesabi Iron range, scale 1:100,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22575.pdf
Jirsa, Mark A.; Boerboom, Terrence J.; Chandler, Val W.; McSwiggen, Peter L.
Date Created:
1991
Description:
Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments), Cook-Side Lake area, scale 1:48,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22472.pdf
Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Deer Lake complex, scale 1:24,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22583.pdf
Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Mesabi Iron Range, scale 1:100,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22581.pdf
Jirsa, Mark A.; Setterholm, Dale R.; Bloomgren, Bruce A.; Lively, R.S.
Date Created:
2002
Description:
Bedrock topography(elevation of the bedrock surface) and drift (unconsolidated sediments overlying the bedrock surface) thickness, western part of the Mesabi Iron Range, scale 1:100,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22535.pdf
United States Department of the Interior Geological Survey; State of Minnesota, Iron Range Resources and Rehabilitation Commission
Date Created:
1952
Description:
Calumet quadrangle topographic map (N4715-W9315/7.5) featuring handwritten notations by Ray Segar in red ink and pencil regarding logging railroad lines and camps in the Calumet area. The hand written notations include information on the following: logging camps noted with ‘C’.