Table 9.--Ore shipments from U.S. ports on the upper Great Lakes1/ (Thousand metric tons gross weight of ore shipped) ------------------------------------------------------------------------------------------------------------- Port 1965 1966 1967 1968 1969 1970 1971 ------------------------------------------------------------------------------------------------------------- Ashland, MI................... 303 -- -- -- -- -- -- Escanaba, MI.................. 6,162 6,709 6,671 6,324 7,010 9,087 8,493 Marquette, MI................. 6,413 7,240 7,365 6,435 7,129 4,155 3,470 Duluth, MN.................... 16,018 16,076 14,324 14,458 16,093 16,770 14,450 Silver Bay, MN................ 10,126 10,807 9,692 9,670 10,820 9,990 9,618 Taconite Harbor, MN........... 8,123 8,732 9,767 10,890 10,338 10,576 9,368 Two Harbors, MN............... -- 2,839 2,391 2,607 5,025 5,112 4,476 Superior, WI.................. 16,423 15,871 12,063 12,553 15,112 12,677 11,176 ------------------------------------------------------------------------------- Total2/..................... 63,568 68,274 62,274 62,937 71,527 68,367 61,053 ------------------------------------------------------------------------------- 1972 1973 1974 1975 1976 1977 1978 ------------------------------------------------------------------------------- Ashland, MI................... -- -- -- -- -- -- -- Escanaba, MI.................. 9,507 8,888 9,026 9,093 10,392 8,017 11,618 Marquette, MI................. 3,112 3,489 3,258 4,458 5,633 4,095 6,099 Duluth, MN.................... 15,104 18,229 18,175 14,559 14,275 10,859 13,785 Silver Bay, MN................ 9,633 11,219 10,687 8,827 9,850 4,520 9,764 Taconite Harbor, MN........... 10,753 13,335 10,780 10,139 10,419 3,557 8,892 Two Harbors, MN............... 6,227 7,864 10,546 8,357 8,150 3,253 9,629 Superior, WI.................. 10,336 12,132 10,313 6,527 6,244 7,825 12,735 ------------------------------------------------------------------------------- Total2/..................... 64,671 75,156 72,785 61,960 64,918 42,126 72,522 ------------------------------------------------------------------------------- 1979 1980 1981 1982 1983 1984 1985 ------------------------------------------------------------------------------- Ashland, MI................... -- -- -- -- -- -- -- Escanaba, MI.................. 12,006 9,881 8,883 5,405 7,535 8,757 7,503 Marquette, MI................. 5,417 5,813 5,427 1,965 3,565 4,529 5,152 Duluth, MN.................... 15,280 13,476 13,281 6,078 6,665 7,889 6,231 Silver Bay, MN................ 8,400 4,470 6,453 2,158 2,761 3,686 3,481 Taconite Harbor, MN........... 9,619 6,195 7,766 3,682 3,923 3,454 5,052 Two Harbors, MN............... 11,302 10,170 10,156 4,550 8,470 6,914 8,859 Superior, WI.................. 13,894 10,309 10,840 8,086 8,807 11,329 8,642 ------------------------------------------------------------------------------- Total2/..................... 75,918 60,314 62,806 31,924 41,726 46,558 44,920 ------------------------------------------------------------------------------- 1986 1987 1988 1989 1990 ------------------------------------------------------- Ashland, MI................... -- -- -- -- -- Escanaba, MI.................. 7,496 6,032 6,660 5,742 4,987 Marquette, MI................. 3,631 7,175 8,054 9,117 5,005 Duluth, MN.................... 5,116 7,717 7,030 7,408 7,728 Silver Bay, MN................ 1,473 186 -- -- 2,234 Taconite Harbor, MN........... 5,545 8,026 7,842 8,217 8,796 Two Harbors, MN............... 6,255 7,236 10,982 9,503 11,668 Superior, WI.................. 9,142 11,495 12,189 11,052 11,230 ------------------------------------------------------- Total2/..................... 38,658 47,867 52,757 51,039 51,648 ------------------------------------------------------------------------------------------------------------- 1/Year cited refers to navigation season, not calendar year. The navigation season traditionally begins in Mar. and ends in either Dec. or the following Jan. 2/Data may not add to totals shown because of independent rounding.