Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of Silver Island Lake, Wilson Lake and Toohey Lake quadrangles, scale 1:24,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22478.pdf
Boerboom, Terrence J.; Patterson, Carrie J.; Knaeble, Alan R.
Date Created:
2001
Description:
Map showing interpretations of Quaternary (Pleistocene [glacial] and Holocene [post-glacial]) surficial geology (distribution and type of materials at the land surface) and thickness of the Quaternary glacial materials, scale 1:100,000, Pine County. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22328.pdf
Boerboom, Terrence J.; Shade, Beverley L.; Alexander, E. Calvin, Jr.; Alexander, Scott C.
Date Created:
2001
Description:
Map showing the thickness (depth to bedrock) of unconsolidated sediments (Quaternary glacial and stream materials) over the bedrock surface and elevation of the bedrock surface (bedrock topography), scale 1:200,000; map showing locations of sinkholes and sinkhole cross sections, scale 1:100,000, Pine County. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22330.pdf
Boerboom, Terrency J.; Severson, Mark J.; Southwick, David L.
Date Created:
1999
Description:
Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) Aitkin quadrangle, scale 1:100,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22496.pdf
Boerboom, Terrency J.; Severson, Mark J.; Southwick, David L.
Date Created:
1999
Description:
Data base, Aitkin quadrangle showing drill holes, outcrops and other data used to make interpretations of bedrock geology for map M-99, scale 1:100,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22497.pdf
Boerboom, Terrency J.; Severson, Mark J.; Southwick, David L.
Date Created:
1999
Description:
Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) Mille Lacs quadrangle, scale 1:100,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22498.pdf
Boerboom, Terrency J.; Severson, Mark J.; Southwick, David L.
Date Created:
1999
Description:
Data base, Mille Lacs quadrangle showing drill holes, outcrops and other data used to make interpretations of bedrock geology for map M-100, scale 1:100,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22499.pdf
Aeromagnetic anomaly (total magnetic intensity anomaly (relative to the earth's magnetic field, interpretation of magnetic data collected from airborne surveys, the map colors indicate the distribution and concentration of magnetic minerals (primarily iron-bearing) within the upper crust of the earth) map of Minnesota, scale 1:500,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22632.pdf
Total magnetic intensity anomaly (relative to the earth's magnetic field), color coded, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map colors 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/umn21104.pdf
Total magnetic intensity anomaly, contour, scale 1:250,000. 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/umn21105.pdf
Total magnetic intensity anomaly (relative to the earth's magnetic field), color coded, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map colors 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/umn21108.pdf
Total magnetic intensity anomaly, contour, scale 1:250,000. 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/umn21109.pdf
Total magnetic intensity anomaly (relative to the earth's magnetic field), color coded, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map colors 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/umn21106.pdf
Total magnetic intensity anomaly, contour, scale 1:250,000. 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/umn21107.pdf
Shaded-relief, (pseudo 3d), black and white map of Aeromagnetic anomaly (total magnetic intensity anomaly (relative to the earth's magnetic field, interpretation of magnetic data collected from airborne surveys, the map colors indicate the distribution and concentration of magnetic minerals (primarily iron-bearing) within the upper crust of the earth) in Minnesota, scale 1:1,000,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23258.pdf
Gravity (interpretation of gravity data collected with ground based meters indicating differences in rock density of rocks in the upper crust) and magnetic anomaly (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) map of southwestern Minnesota, scale 1:250,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22531.pdf
Gravity (interpretation of gravity data collected with ground based meters indicating differences in rock density of rocks in the upper crust) and magnetic anomaly (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) map of the central Duluth complex, scale 1:100,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22522.pdf
Gravity (interpretation of gravity data collected with ground based meters indicating differences in rock density of rocks in the upper crust) and magnetic anomaly (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) map of the Duluth complex and related rocks, scale 1:200,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22529.pdf
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/umn21110.pdf
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/umn21114.pdf
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/umn21116.pdf
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/umn21113.pdf
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/umn21112.pdf
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/umn21117.pdf
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/umn21111.pdf
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/umn21115.pdf
Geophysical (gravity and magnetic) data and modeling of subsurface geology from the geophysical data for part of the Duluth Complex, scale 24,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22487.pdf
Bouguer gravity anomaly map (anomaly related to different densities of rocks in the upper crust, Bouguer anomaly is a corrected difference between an observed gravity measurement and value predicted from a generalized earth model), shown as contour lines (isolines) of equal value, map of Minnesota, scale 1:500,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22631.pdf
Text of the Northfield City Charter with resolutions, ordinances and notices as recorded by the City of Northfield, Minnesota from March 1875 to June 1906.
Text of the Northfield City Charter with resolutions, ordinances and notices as recorded by the City of Northfield, Minnesota from January 1908 to March 1957.
Pollution sensitivity of Quaternary (glacial and stream sediment) aquifers, southern Red River Valley, Minnesota, scale 1:200,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22607.pdf
Quaternary (glacial and stream sediment) hydrogeology (ground water information) map of southern Red River Valley, Minnesota, scale 1:200,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22606.pdf
Quaternary (glacial and stream sediment) hydrogeology (ground water information) map of southwestern Minnesota, scale 1:200,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22602.pdf
Quaternary (glacial and stream sediment) hydrogeology (ground water information) map of the upper Minnesota River basin, Minnesota, scale 1:200,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22610.pdf
Pollution sensitivity of Quaternary (glacial and stream sediment) aquifers, of the upper Minnesota River basin, Minnesota, scale 1:200,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22611.pdf
Falteisek, Jan; Alexander, E. Calvin, Jr.; Berner, David J.; Gao, Yongli; Green, Jeffrey A.
Date Created:
2003
Description:
Maps showing distribution of karst (carbonate rock with caves, springs) units and features and karst hydrology in carbonate rocks susceptible to being dissolved by acidic ground water, scale 1:100000, Goodhue County. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22324.pdf
Falteisek, Jan; Alexander, E. Calvin, Jr.; Green Jeffrey A.; Alexander, Scott C.; Spong, Ronald C.
Date Created:
1996
Description:
Map showing the locations of springs and seeps and the interaction of surface drainage, karst (carbonate rock with caves, springs) ground water and subsurface flow, scale 1:100,000, Fillmore County. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22284.pdf
Cross sections detailing how and when ground water moves through the bedrock and Quaternary (unconsolidated glacial and stream sediment overlying the bedrock) aquifers, scale 1:100,000, Goodhue County. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22322.pdf
Map showing the susceptibility of ground water in the upper most bedrock aquifers to contamination, including the age of the water as determined from radioactive isotopes in the water, scale 1:100,000, Goodhue County. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22323.pdf
Maps showing ground water resources and aquifer characteristics in the bedrock and unconsolidated sediments overlying the bedrock, including the age of the water as determined from radioactive isotopes in the water, scale 1:150,000, Goodhue County. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22321.pdf
Maps showing ground water resources and aquifer characteristics in the bedrock, including the age of the water (how long since the water entered the ground), scale 1:100,000, Mower County. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22311.pdf
Map showing the susceptibility of ground water in the upper most bedrock aquifers to contamination, including the age of the water as determined from radioactive isotopes in the water, scale 1:100,000; 1:200,000, Mower County. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22313.pdf
Maps showing ground water resources and aquifer characteristics in the bedrock, including the age of the water (how long since the water entered the ground), scale 1:100,000, Rice County. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22292.pdf
Map showing the susceptibility of the ground water system (bedrock and unconsolidated sediments) to contamination,including the age of the water (how long since the water entered the ground), scale 1:100,000, Rice County. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22293.pdf
Map showing sensitivity interpretations and how the age of the water as determined from radioactive isotopes (tritium) is related to the ease of pollution, scale 1:200,000, Rice County. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22294.pdf
Maps and cross sections detailing how and when ground water moves through the bedrock aquifers, scale 1:67,000, Mower County. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22312.pdf
Maps showing ground water resources and aquifer characteristics in the bedrock and unconsolidated sediments (glacial and stream sediments) overlying the bedrock and interactions between surface and bedrock aquifers, scale 1:100,000, Rice County. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22291.pdf
Falteisek, Jan; Green, Jeffrey A.; Alexander, E. Calvin Jr.; Marken, William J.; Alexander, Scott C.
Date Created:
2002
Description:
Maps showing distribution of karst (carbonate rock with caves, springs) units and features and karst hydrology in carbonate rocks susceptible to being dissolved by acidic ground water, scale 1:100000, Mower County. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22314.pdf
Falteisek, Jan; Witthuhn, Kathleen, M.; Alexander, E. Calvin, Jr.
Date Created:
1996
Description:
Map showing location of sinkholes and likelihood of future sinkhole development, scale 1:100,000, Fillmore County. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22283.pdf