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1861. Geology of Cook County, Minnesota, Bulletin 39, Plate 15

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1959. Grout, Frank F. (Frank Fitch), 1880-1958, Schwartz, George M. (George Melvin), 1892-1980, and Sharp, R.P. (Surveyor). Plate 14, Geology map of Township 60 North, Range 2 West, Cook County, Minnesota, scale 1 inch = about 1/2 mile. Minnesota Geological Survey.

1862. Geology of Cook County, Minnesota, Bulletin 39, Plate 16

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1959. Grout, Frank F. (Frank Fitch), 1880-1958, Schwartz, George M. (George Melvin), 1892-1980, and Sharp, R.P. (Surveyor). Plate 15, Geology map of Township 59 North, Range 4 West, Cook County, Minnesota, scale 1 inch = about 1/2 mile. Minnesota Geological Survey.

1863. Geology of Cook County, Minnesota, Bulletin 39, Plate 17

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1959. Grout, Frank F. (Frank Fitch), 1880-1958, Schwartz, George M. (George Melvin), 1892-1980, and Sharp, R.P. (Surveyor). Plate 16, Geology map of Township 58 North, Range 5 West, Cook County, Minnesota, scale 1 inch = about 1/2 mile. Minnesota Geological Survey.

1864. Geology of Cook County, Minnesota, Bulletin 39, Plate 2

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1959. Grout, Frank F. (Frank Fitch), 1880-1958, Schwartz, George M. (George Melvin), 1892-1980, and Sharp, R.P. (Surveyor). Geology of Cook County, Minnesota, 1 inch = about 4 miles. Minnesota Geological Survey.

1865. Geology of Cook County, Minnesota, Bulletin 39, Plate 3

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1959. Grout, Frank F. (Frank Fitch), 1880-1958, Schwartz, George M. (George Melvin), 1892-1980, and Sharp, R.P. (Surveyor). Geology of the Gunflint District, Minnesota, scale 1:24,000. Minnesota Geological Survey.

1866. Geology of Cook County, Minnesota, Bulletin 39, Plate 4

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1959. Grout, Frank F. (Frank Fitch), 1880-1958, Schwartz, George M. (George Melvin), 1892-1980, and Sharp, R.P. (Surveyor). Plate 3A, Geology of the Gunflint District, Minnesota, scale 1:24000. Minnesota Geological Survey.

1867. Geology of Cook County, Minnesota, Bulletin 39, Plate 5

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1959. Grout, Frank F. (Frank Fitch), 1880-1958, Schwartz, George M. (George Melvin), 1892-1980, and Sharp, R.P. (Surveyor). 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. Minnesota Geological Survey.

1868. Geology of Cook County, Minnesota, Bulletin 39, Plate 6

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1959. Grout, Frank F. (Frank Fitch), 1880-1958, Schwartz, George M. (George Melvin), 1892-1980, and Sharp, R.P. (Surveyor). 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. Minnesota Geological Survey.

1869. Geology of Cook County, Minnesota, Bulletin 39, Plate 7

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1959. Grout, Frank F. (Frank Fitch), 1880-1958, Schwartz, George M. (George Melvin), 1892-1980, and Sharp, R.P. (Surveyor). Plate 6, Geology map of Township 64 North, Range 5 East, Cook County, Minnesota, scale 1 inch = about 1/2 mile. Minnesota Geological Survey.

1870. Geology of Cook County, Minnesota, Bulletin 39, Plate 8

Maps University Of Minnesota Public content
1959. Grout, Frank F. (Frank Fitch), 1880-1958, Schwartz, George M. (George Melvin), 1892-1980, and Sharp, R.P. (Surveyor). Plate 7, Geology map of Township 63 North, Range 5 East, Cook County, Minnesota, scale 1 inch = about 1/2 mile. Minnesota Geological Survey.