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

University of Minnesota Public content
1959. Grout, Frank F., Sharp, R.P., and Schwartz, George M. Plate 15, Geology map of Township 59 North, Range 4 West, Cook County, Minnesota, scale 1 inch = about 1/2 mile. Minnesota Geological Survey.

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

University of Minnesota Public content
1959. Grout, Frank F., Sharp, R.P., and Schwartz, George M. Plate 16, Geology map of Township 58 North, Range 5 West, Cook County, Minnesota, scale 1 inch = about 1/2 mile. Minnesota Geological Survey.

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

University of Minnesota Public content
1959. Grout, Frank F., Sharp, R.P., and Schwartz, George M. 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.

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

University of Minnesota Public content
1959. Grout, Frank F., Sharp, R.P., and Schwartz, George M. 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.

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

University of Minnesota Public content
1959. Grout, Frank F., Sharp, R.P., and Schwartz, George M. Plate 6, Geology map of Township 64 North, Range 5 East, Cook County, Minnesota, scale 1 inch = about 1/2 mile. Minnesota Geological Survey.

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

University of Minnesota Public content
1959. Grout, Frank F., Sharp, R.P., and Schwartz, George M. Plate 7, Geology map of Township 63 North, Range 5 East, Cook County, Minnesota, scale 1 inch = about 1/2 mile. Minnesota Geological Survey.

50. Geology of Cook County, Minnesota, Bulletin 39, Plate 9

University of Minnesota Public content
1959. Grout, Frank F., Sharp, R.P., and Schwartz, George M. Plate 8, Geology map of Townships 61 and 62 North, Range 3 East, Cook County, Minnesota, scale 1 inch = about 1/2 mile. Minnesota Geological Survey.