1963              45,383 25,576 56.36 1965              52,053 29,510 56.691964
             49,054 27,660 56.39 1966              54,280 30,625 56.421967
             50,157 28,742 57.30 THE MINERAL INDUSTRY OF MINNESOTA 435 
 
 
Table 6.—Usable iron ore 1 data, in 1967, by counties and ranges 
(Thousand long tons) 
 County and range Stocks Produc-   Iron Ship- Stocks 
  Jan. 1  tion content of ments Dec. 31 
    producton 
County: - 
 Crow Wing 76 1,041 539 797 320 
 Fillmore 295 58 27 312 40 
 Itasca 1,560 6,827 3,948 7,260 1,127 
 St. Louis 2,729 42,232 24,228 41,088 3,873 
 Total 2 4,659 50,157 28,742 49,457 5,360 
 
Range: 
 Cuyuna 76 1,041 539 797 320 
 Mesabi 4,202 48,857 28,055 48,059 5,000 
 Vermilion 87 202 121 289 
 Spring Valley district 295 58 27 312 40 
 Total 2 4,659 50,157 28,742 49,457 5,360 
 
1 Exclusive of ore containing 5 percent or more manganese. 
2 Data may not add to totals shown because of independent rounding. 
 
 
Table 7.—Usable iron ore 1 produced (direct-shipping and all forms
of concentrate), 
by ranges 
(Thousand long tons) 
    Spring 
 Year Cuyuna Mesabi Vermilion Valley Total 2 
    District 
1884—1962 65,640 2,372,298 100,200 5,668 2,543,805 
1963 515 43,570 774 524 45,383 
1964 513 47,256 865 420 49,054 
1965 367 50,279 782 625 52,053 
1966 1,299 51,506 704 772 54,280 
1967 1,041 48,857 202 58 50,157 
 Total 2 69,375 2,613,766 103,527 8,066 2,794,733 
 
1 Exclusive, after 1905, of iron ore containing 5 percent or more manganese.

2 Data may not add to totals shown because of independent rounding. 
 
 
Table 8.—Production of usable iron ore 
(Thousand long tons) 
 Gross weight Iron Gross weight Iron 
 Year   content Year ~—— ~—— content 
  Ore  Iron (percent)    Ore  Iron (percent) 
   content    content