Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of Township 51 North, Range 15 West, scale 1 inch = about 1/2 mile. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23309.pdf
Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of Township 52 North, Range 11 West, scale 1 inch = about 1/2 mile. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23310.pdf
Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of Township 52 North, Range 12 West, scale 1 inch = about 1/2 mile. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23311.pdf
Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of Township 52 North, Range 13 West, scale 1 inch = about 1/2 mile. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23312.pdf
Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of Townships 49 and 50 North, Range 14 West, scale 1 inch = about 1/2 mile. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23304.pdf
Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of Township 50 North, Range 15 West, scale 1 inch = about 1/2 mile. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23305.pdf
Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of Township 51 North, Range 12 West, scale 1 inch = about 1/2 mile. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23306.pdf
Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of Township 51 North, Range 13 West, scale 1 inch = about 1/2 mile. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23307.pdf
Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of Township 49 North, Range 16 West, scale 1 inch = about 1/2 mile. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23302.pdf
Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of Township 49 North, Range 17 West, scale 1 inch = about 1/2 mile. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23303.pdf
Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of Township 49 North, Range 15 West, scale 1 inch = about 1/2 mile. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23301.pdf
The June/August 1949 edition of the Geological Society of Minnesota (GSM) newsletter included a report on a field trip to Utah and the Black Hills, and a listing of books being sold from the Alger R. Syme book collection.
The March/May 1949 edition of the Geological Society of Minnesota (GSM) newsletter included society news, a memorial to Junior F. Hayden, a story on geology of Whitewater State Park, and an outline of twice-monthly field trips for summer 1949.
The September/October 1949 edition of the Geological Society of Minnesota (GSM) newsletter included a report on the Midwest Federation of Geological Societies Convention in Davenport, Iowa, at which the focus shifted toward minerals and lapidary, as well as a memorial to Lillian J. Freeman, an article on the atmosphere, the lecture schedule for the coming winter, and an article on uranium.
The January/February 1949 edition of the Geological Society of Minnesota (GSM) newsletter included memorial to Mr. Rowberg and to Alden Clark, and a membership directory.
The 1949 annual meeting of the Minnesota Academy of Science took place at the University of Minnesota in Minneapolis on April 23, 1949. This program shows 30+ scientific talks, ranging from "microwave diathermy" and a "microwave demonstrator" to the origin of Minnesota lakes. The keynote speaker was Dr. Benjamin Spock, of the Mayo Foundation, on "Emotional Development in Children." Full-text of the published papers is available in the digitized Journal of the Minnesota Academy of Science.
The December 1949 edition of the Geological Society of Minnesota (GSM) newsletter included the Presidential Address, a review of the contribution made to the society by Mr. E. P. Burch, a report on the geological markers project, an article on uranium, and news of the death of Hazel Prochaska.
The First Quarter 1950 edition of the Geological Society of Minnesota (GSM) newsletter indicated that the banquet speaker in March would be Dr. Ben Hur Wilson, an invitation to their events by the Minnesota Mineral Club, announcement of the coming national federation convention in Milwaukee, an article on time, and a third article on uranium.
The Second Quarter 1950 edition of the Geological Society of Minnesota (GSM) newsletter outlined a planned field trip to Wisconsin, a listing of twice-monthly field trips over the summer, an outline of a plan for advancement of geologic education in America, and information on the Milwaukee convention.
The Third Quarter 1950 edition of the Geological Society of Minnesota (GSM) newsletter included a report from the Milwaukee convention of the federation, a review of the first twelve years of GSM activity, a listing of lectures planned for the winter, a report on dedication of a plaque at Gooseberry Falls, and a financial report.
The First Quarter 1951 edition of the Geological Society of Minnesota (GSM) newsletter reported that plaques had been ordered for near Stillwater and Mankato, and included GSM articles of incorporation and bylaws, and a membership directory.
The Fourth Quarter 1951 edition of the Geological Society of Minnesota (GSM) newsletter included the program for lectures at the Science Museum, announcement of the death of Benjamin A. Pratt, news that Macalester would host the coming Midwest convention, a note on the lake Pepin plaque, and article on the Franconia Formation by Robert R. Berg, and another on climate, as well as a memorials to Effie Burch McWethy, Paul Denkowitz, and Benjamin A. Pratt.
The Second Quarter 1951 edition of the Geological Society of Minnesota (GSM) newsletter mentioned that the State Fair booth was joint with the University of Minnesota geology department and the survey, and reported on plans for twice-monthly summer field trips to sites ranging from Alberta to Wisconsin, as well as news of the planned dedication of the Reads Landing plaque, an article on plans for the federation convention in Houghton, where hotel rooms could be had for $2.50 a night, and an article on geology of Buffalo River State Park.
The Third Quarter 1951 edition of the Geological Society of Minnesota (GSM) newsletter included a report on the first state fair booth, an indication that the American Geological Institute had published news on the Minnesota plaque project, the lecture program for the winter, reports on plaque dedications, a report on the convention in Tacoma, and a report on the field trip to Alberta.
The Fall/Winter 1952 edition of the Geological Society of Minnesota (GSM) newsletter indicated lecture attendance averaging 89, a description of the public perception of geology based on state fair experience, a note on copper-nickel potential near Ely, a report on the eastern federation meeting in Newark, and a memorial to Edward W. Hawley.
The Spring 1952 edition of the Geological Society of Minnesota (GSM) newsletter discussed the Junior Hayden bequest to the University, an outline of twice-monthly field trips over the summer, and news on plans for the Midwest convention at Macalester College.
The 1952 annual meeting of the Minnesota Academy of Science took place at State Teachers College in St. Cloud on May 2-3, 1952. This program shows 30+ scientific talks, ranging from Minnesota fisheries to ore prospecting to the flora of the Cedar Creek Forest. There was a special session for high school science teachers, with a discussion on "Organizing and Sponsoring a Chapter of the Junior Academy of Science." Full-text of the published papers is available in the digitized Journal of the Minnesota Academy of Science.
The Fall/Winter 1953-1954 edition of the Geological Society of Minnesota (GSM) newsletter included an editorial on the future of the society, the weekly lecture schedule, an article on mineral hardness, and an article discussing GSM field trips.
The Spring/Summer 1953 edition of the Geological Society of Minnesota (GSM) newsletter included plans for summer field trips, an article on Newton Horace Winchell, an article on time-lapse, memorials to W. C. Wilson and Lynn Gardiner, and a report on the Midwest federation convention in St. Louis.
Sheet 1 of 4 sheets, Stratigraphy (vertical and time sequence of geologic units) of Biwabik Formation, Mesabi Range, Minnesota, scale 1 inch = 11.2 miles. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23319.pdf
Sheet 4 of 4 sheets, Stratigraphy (vertical and time sequence of geologic units) of Biwabik Formation, Mesabi Range, Minnesota, scale 1 inch = 11.2 miles. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23322.pdf
Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Precambrian of the Westernmost Mesabi District, Minnesota, scale 1:62,500. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23323.pdf
Sheet 1 of 11 sheets, Structure contour (contour lines of equal elevation that map features in the subsurface produced by rock deformation or erosion), map of the Mesabi Range, Minnesota, scale 1:31,250. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23324.pdf
Sheet 2 of 11 sheets, Structure contour (contour lines of equal elevation that map features in the subsurface produced by rock deformation or erosion), map of the Mesabi Range, Minnesota, scale 1:31,250. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23325.pdf
Sheet 3 of 11 sheets, Structure contour (contour lines of equal elevation that map features in the subsurface produced by rock deformation or erosion), map of the Mesabi Range, Minnesota, scale 1:31,250. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23326.pdf
Sheet 4 of 11 sheets, Structure contour (contour lines of equal elevation that map features in the subsurface produced by rock deformation or erosion), map of the Mesabi Range, Minnesota, scale 1:31,250. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23327.pdf
Sheet 5 of 11 sheets, Structure contour (contour lines of equal elevation that map features in the subsurface produced by rock deformation or erosion), map of the Mesabi Range, Minnesota, scale 1:31,250. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23328.pdf
Sheet 6 of 11 sheets, Structure contour (contour lines of equal elevation that map features in the subsurface produced by rock deformation or erosion), map of the Mesabi Range, Minnesota, scale 1:31,250. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23329.pdf
Sheet 7 of 11 sheets, Structure contour (contour lines of equal elevation that map features in the subsurface produced by rock deformation or erosion), map of the Mesabi Range, Minnesota, scale 1:31,250. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23330.pdf
Sheet 8 of 11 sheets, Structure contour (contour lines of equal elevation that map features in the subsurface produced by rock deformation or erosion), map of the Mesabi Range, Minnesota, scale 1:31,250. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23331.pdf
Sheet 9 of 11 sheets, Structure contour (contour lines of equal elevation that map features in the subsurface produced by rock deformation or erosion), map of the Mesabi Range, Minnesota, scale 1:31,250. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23332.pdf
Sheet 10 of 11 sheets, Structure contour (contour lines of equal elevation that map features in the subsurface produced by rock deformation or erosion), map of the Mesabi Range, Minnesota, scale 1:31,250. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23333.pdf
Sheet 11 of 11 sheets, Structure contour (contour lines of equal elevation that map features in the subsurface produced by rock deformation or erosion), map of the Mesabi Range, Minnesota, scale 1:31,250. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23334.pdf
Map of the thickness of drift (thickness of unconsolidated sediments overlying the bedrock surface, Mesabi Range, Minnesota, scale 1:125,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23335.pdf
Sheet 2 of 4 sheets, Stratigraphy (vertical and time sequence of geologic units) of Biwabik Formation, Mesabi Range, Minnesota, scale 1 inch = 11.2 miles. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23320.pdf
Sheet 3 of 4 sheets, Stratigraphy (vertical and time sequence of geologic units) of Biwabik Formation, Mesabi Range, Minnesota, scale 1 inch = 11.2 miles. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23321.pdf
The Fall/Winter 1954-1955 edition of the Geological Society of Minnesota (GSM) newsletter included a listing of weekly lectures, am article on how rocks can tell romantic stories, plans for twice-monthly summer field trips, and an article on the cause of ice ages.
The Spring/Summer 1954 edition of the Geological Society of Minnesota (GSM) newsletter included a listing of planned summer field trips, an article on aluminum, a note on plaques for Minnehaha Park, Mille Lacs, Minnetonka, and Elk River, a report on the Midwest convention in Milwaukee, memorials to Ralph Hollingsworth, H. H. Edgerton, and Maida Wheeler, and a story on the around-the-world trip made by Mr. and Mrs. Henry Sommers.
Diagram showing correlation of subdivisions of Iron-Formations Cuyuna, Mesabi, and Gogebic Ranges, Minnesota, , vertical scale 1 inch = about 200 feet. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23318.pdf
Cross section B-B, geology of the Cuyuna Range, Minnesota, scale 1 inch = 500 feet. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23315.pdf
Cross sections A-A and C-C, geology of the Cuyuna Range, Minnesota, scale 1 inch = 500 feet. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23316.pdf
Map of west extension of South Range, Cuyuna Iron District, Minnesota, scale 1 inch = about 3/4 mile. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23317.pdf
Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) around the Cuyuna district, Minnesota, scale 1 inch = 15 miles. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23313.pdf
Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) the Cuyuna Iron District, North Range and part of South Range, Crow Wing County, Minnesota, scale 1 inch = about 1/3 mile. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23314.pdf
The Spring/Summer 1955 edition of the Geological Society of Minnesota (GSM) newsletter included an article on Hawaii, an article and map showing location of 28 geological markers across Minnesota, as well as the text for markers at St. Louis River, Duluth Harbor, and the Mesabi Range, as well as a financial statement for the society.
The Winter 1955-1956 edition of the Geological Society of Minnesota (GSM) newsletter listed lectures, several given by Dr. Sloan, plans for a two-week trip to Montana and Washington, an open letter from the Board, articles on time and on soil, and a memorial to Charles H. Preston.
This hand-written list of Minnesota Academy of Science presidents 1932-1956 includes such prominent Minnesotans as the explorer/geologist and Carleton College president Laurence M. Gould, Bell Museum of Natural History director Walter J. Breckenridge, and Hiram E. Essex, one of several from the Mayo Clinic/Mayo Foundation. An up-to-date list may be viewed at the Academy's website, including links to further information for selected individuals.
The Lecture Season 1956-1957 edition of the Geological Society of Minnesota (GSM) newsletter indicated that the geological marker project that had been funded by the Louis W. and Maud Hill Family Foundation was nearing completion, as well as three articles on field trips.
The Spring/Summer 1956 edition of the Geological Society of Minnesota (GSM) newsletter included plans for twice-monthly summer field trips, plans for the Midwest federation convention in St. Paul, and the text of plaques at Red Wing, Whitewater State Park, Grand Marais, and Lake Harriet.
The 1956 annual meeting of the Minnesota Academy of Science took place at Augsburg College on May 4-5, 1956. This program shows 60+ scientific talks and demonstrations, ranging from a preliminary survey of Minnesota's taconite industry to "The Effects of Aerial Spraying on the Fauna of Areas Treated." This annual meeting was held "with concurrent sessions of National Association of Biology Teachers," as well as a "Joint Meeting of Mathematical Section and the Minnesota Section of the Mathematical Association of America." Full-text of the published papers is available in the digitized Journal of the Minnesota Academy of Science.
The Spring/Summer 1957 edition of the Geological Society of Minnesota (GSM) newsletter reported on plans for the field trip to Colorado and New Mexico, as well as twice-monthly local summer field trips and the Midwest federation field trip convention, and an article on uranium mines.
The Fall/Winter 1957-1958 edition of the Geological Society of Minnesota (GSM) newsletter indicated plans for lectures, including a structural geology series by J. Campbell Craddock, news on the Burch Rock Collection, a financial statement, and a report on the Midwest convention in Platteville.
The Spring/Summer 1958 edition of the Geological Society of Minnesota (GSM) newsletter described twice-monthly field summer trips, a report on society affairs, and an article on nickel.
The Fall/Winter 1958-59 edition of the Geological Society of Minnesota (GSM) newsletter outlined plans for twice-monthly lectures, a summary of basic geological terminology, a discussion of field trips, and an article on ore minerals.
Glacial (Quaternary age glacial and stream sediments and landforms) features of Cook County, Minnesota, scale 1 inch = 5 miles. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23336.pdf
Plate 5, Sequence of volcanic lava flows along shore from the Lake County line to Good Harbor Bay, Minnesota, scale 1 inch = about 3/4 miles. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23341.pdf
Plate 6, Geology map of Township 64 North, Range 5 East, Cook County, Minnesota, scale 1 inch = about 1/2 mile. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23342.pdf
Plate 7, Geology map of Township 63 North, Range 5 East, Cook County, Minnesota, scale 1 inch = about 1/2 mile. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23343.pdf
Plate 8, Geology map of Townships 61 and 62 North, Range 3 East, Cook County, Minnesota, scale 1 inch = about 1/2 mile. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23344.pdf
Plate 9, Geology map of Township 62 North, Range 4 East, Cook County, Minnesota, scale 1 inch = about 1/2 mile. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23345.pdf
Plate 10, Geology map of Townships 60 and 61 North, Range 1 West, Cook County, Minnesota, scale 1 inch = about 1/2 mile. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23346.pdf
Plate 11, Geology map of Township 61 North, Range 1 East, Cook County, Minnesota, scale 1 inch = about 1/2 mile. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23347.pdf
Plate 12, Geology map of parts of Townships 61 and 62 North, Range 2 East, Cook County, Minnesota, scale 1 inch = about 1/2 mile. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23348.pdf
Plate 13, Geology map of Townships 59 and 60 North, Range 3 West, Cook County, Minnesota, scale 1 inch = about 1/2 mile. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23349.pdf
Plate 14, Geology map of Township 60 North, Range 2 West, Cook County, Minnesota, scale 1 inch = about 1/2 mile. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23350.pdf
Plate 16, Geology map of Township 58 North, Range 5 West, Cook County, Minnesota, scale 1 inch = about 1/2 mile. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23352.pdf
Plate 3A, Geology of the Gunflint District, Minnesota, scale 1:24000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23339.pdf
Plate 4, Sequence of volcanic lava flows along shore from Good Harbor Bay to Grand Portage Bay, Minnesota, scale 1 inch = about 3/4 miles. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23340.pdf
Plate 15, Geology map of Township 59 North, Range 4 West, Cook County, Minnesota, scale 1 inch = about 1/2 mile. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23351.pdf
The Spring/Summer 1959 edition of the Geological Society of Minnesota (GSM) newsletter discussed cancellation of the field trip to Ohio and Indiana, and an article on the distribution of rock types relative to region and age.
The Winter 1960 edition of the Geological Society of Minnesota (GSM) newsletter included articles on the risk that carbon dioxide emissions may cause climate change and on geology of the Twin Cities, and a report on activity of the American Federation of Mineralogical Societies.
The 1960 annual meeting of the Minnesota Academy of Science took place at St. Cloud State College on May 6-7, 1960. This program shows 60+ scientific talks, ranging from late prehistorical archeological sites in Clearwater County to "The Effects of Highway Improvement on Land Use and Land Occupants" to nutrient transport in soybeans. The Minnesota Area Association of Physics Teachers also met, as did the National Association of Biology Teachers. The program booklet includes an "In Memoriam" list of members whose deaths had been reported since 1955, along with the year they'd joined the Academy. Full-text of the published papers is available in the digitized Journal of the Minnesota Academy of Science.
Pleistocene (Quaternary age glacial and stream sediments) geology of the Randall Region, Minnesota, scale 1:62,500. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23353.pdf
Goldich, Sam S.; Nier, Al O.; Baadsgaard, H.; Hoffman, J.H.; Krueger, H.W.
Date Created:
1961
Description:
Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of northeastern Minnesota, scale 1 inch = about 15 miles. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23354.pdf
Goldich, Sam S.; Nier, Al O.; Baadsgaard, H.; Hoffman, J.H.; Krueger, H.W.
Date Created:
1961
Description:
Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of east-central Minnesota, scale 1 inch = about 10 miles. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23355.pdf
Goldich, Sam S.; Nier, Al O.; Baadsgaard, H.; Hoffman, J.H.; Krueger, H.W.
Date Created:
1961
Description:
Map of the Minnesota-Ontario border region, showing location of dated samples, scale 1 inch = about 20 miles. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23356.pdf
Goldich, Sam S.; Nier, Al O.; Baadsgaard, H.; Hoffman, J.H.; Krueger, H.W.
Date Created:
1961
Description:
Map of western part of the Lake Superior region, Minnesota, showing location of samples that were age-dated by radioactive isotope methods, scale 1 inch = about 40 miles. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23357.pdf
Goldich, Sam S.; Nier, Al O.; Baadsgaard, H.; Hoffman, J.H.; Krueger, H.W.
Date Created:
1961
Description:
Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Granite Falls area, Minnesota, showing locations of dated samples, scale 1 inch = about 1/4 mile. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23358.pdf
The Spring/Summer 1961 edition of the Geological Society of Minnesota (GSM) newsletter included notices regarding the Midwest federation meeting in Saginaw and a Black Hills field trip, and a financial statement.
Generalized geologic map and longitudinal diagram of the Eastern Mesabi District, Minnesota, scale 1 inch = about 1 1/4 mile. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23359.pdf
Magnetic (interpretation of magnetic data collected from airborne or ground surveys, indicating the distribution and concentration of magnetic minerals (primarily iron-bearing) within the upper crust of the earth) map of McLeod County, Minnesota, scale 1 inch = about 1 1/4 mile. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23373.pdf