TABLE 11. - Production in short tons, by general work location, at all coal
mines in the United States, 1931-77 1/
Underground mines Total
Year underground
Underground Surface mines
1931 416,718,433 - 416,718,433
1932 333,893,739 - 333,893,739
1933 356,359,179 - 356,359,179
1936 387,150,296 - 387,150,296
1935 392,504,706 - 392,504,706
1936 453,977,317 - 453,977,317
1937 457,991,826 - 457,991,826
1938 357,384,689 - 357,384,689
1939 401,942,282 - 401,942,282
1940 460,471,033 - 460,471,033
1941 502,018,940 - 502,018,940
1942 560,561,752 - 560,561,752
1943 556,266,384 - 556,266,384
1944 561,629,831 - 561,629,831
1945 502,489,349 - 502,489,349
1946 459,788,162 - 459,788,162
1947 530,913,345 - 530,913,345
1948 494,355,070 - 494,355,070
1949 357,550,429 - 357,550,429
1950 424,710,888 - 424,710,888
1951 444,005,016 - 444,005,016
1952 383,519,654 - 383,519,654
1953 367,327,424 - 367,327,424
1954 306,017,881 - 306,017,881
1955 359,612,537 - 359,612,537
1956 378,748,465 - 378,748,465
1957 370,683,866 - 370,683,866
1958 297,333,434 - 297,333,434
1959 293,291,026 - 293,291,026
1960 293,029,410 - 293,029,410
1961 279,595,340 - 279,595,340
1962 287,995,378 - 287,995,378
1963 308,711,417 - 308,711,417
1964 328,331,873 - 328,331,873
1965 337,977,049 - 337,977,049
1966 342,325,509 - 342,325,509
1967 350,374,100 - 350,374,100
1968 344,630,387 - 344,630,387
1969 3~7,670,116 - 347,670,116
1970 339,562,040 - 339,562,040
1971 278,011,258 - 278,011,258
1972 287,714,237 - 287,714,237
1973 285,873,030 - 285,873,030
1974 263,962,854 - 263,962,854
1975 278,649,145 - 278,649,145
1976 281,031,488 - 281,031,488
1977 257,461,857 - 257,461,857
NA Not available
1/ Raw coal is not produced at the work locations of surface at underground,
shops and yards, and mechanical cleaning plants.
Total
Year Strip Auger Culm Dredges surface Total
banks mining mining
1931 25,032,545 NA NA NA 25,032,545 441,750,978
1932 25,671,354 NA NA NA 25,671,354 359,565,093
1933 26,812,698 NA NA NA 26,812,698 383,171,877
1936 29,386,017 NA NA NA 29,386,017 416,536,313
1935 32,127,299 NA NA NA 32,127,299 424,632,005
1936 36,614,761 NA NA 546,684 37,161,445 491,138,762
1937 40,040,628 NA NA 760,474 40,801,102 498,792,928
1938 37,740,919 NA NA 571,024 38,311,943 395,696,632
1939 45,330,497 NA NA 703,860 46,034,357 447,976,639
1940 51,395,759 NA NA 941,327 52,337,086 512,808,119
1941 66,387,804 NA NA 1,477,465 67,865,269 569,884,209
1942 78,084,133 NA NA 1,374,977 79,459,110 640,020,862
1943 89,191,381 NA 6,193,785 1,325,479 96,710,645 652,977,029
1944 112,659,382 NA 9,293,566 1,367,210 123,320,158 684,949,989
1945 118,997,299 NA 8,829,567 1,207,180 129,034,046 631,523,395
1946 124,834,521 NA 8,248,271 1,105,343 134,188,135 593,976,297
1947 146,618,583 NA 6,430,185 1,199,894 154,248,662 685,162,007
1948 148,877,291 NA 5,755,540 1,015,079 155,647,910 650,002,980
1949 116,262,831 NA 4,228,940 877,543 121,369,314 478,919,743
1950 135,446,831 NA 1,737,978 409,327 137,594,136 562,305,024
1951 128,799,116 NA 1,814,077 341,903 130,955,096 574,960,112
1952 124,287,858 NA 1,774,236 385,389 126,447,483 509,967,137
1953 116,528,818 NA 2,259,517 288,061 119,076,396 486,403,820
1954 111,166,931 NA 3,236,493 463,851 114,867,275 420,885,156
1955 124,362,826 3,692,423 3,193,830 606,011 131,855,090 491,467,627
1956 137,435,774 7,823,275 3,776,493 662,792 149,698,334 528,446,799
1957 130,808,650 8,017,743 4,542,694 652,738 144 021,825 514,705,691
1958 123,915,428 7,244,021 3,011,507 691,792 134 862,748 432,196,182
1959 127,913,691 7,227,767 3,425,344 716,619 139,283,421 432,574,447
1960 130,053,426 7,906,777 3,321,755 724,500 142,006,458 435,035,868
1961 129,759,645 7,975,984 2,653,814 744,194 141,133,637 420,728,977
1962 137,681,375 10,769,478 2,798,544 727,051 151,976,448 439,971,826
1963 153,403,158 12,422,052 3,400,990 691,730 169,917,930 478,629,347
1964 160,001,866 13,025,732 3,508,089 705,248 177,240,935 505,572,808
1965 172,092,980 14,285,371 2,937,184 700,457 190,015,992 527,993,041
1966 184,461,222 15,071,139 2,950,325 655,617 203,138,303 545,463,812
1967 190,268,662 15,858,604 3,631,346 631,660 210,390,272 560,764,372
1968 189,378,478 15,011,311 3,714,194 605,920 208,709,903 553,340,290
1969 201,897,128 15,930,018 3,149,484 535,369 221,511,999 569,182,115
1970 248,172,928 18,585,471 3,073,093 409,724 270,241,216 609,803,256
1971 264,423,535 17,322,391 2,572,865 390,174 284,708,965 562,720,223
1972 235,830,862 8,872,231 1,814,515 354,228 246,871,836 534,586,073
1973 260,807,218 8,884,179 2,058,595 326,422 272,076,414 557,949,444
1974 292,572,423 7,570,911 1,644,681 22,794 301,810,809 565,773,663
1975 324,443,943 4,610,911 3,378,169 48,155 332,481,178 611,130,323
1976 358,469,458 4,616,597 2,961,873 7,500 366,055,428 647,086,916
1977 406,362,921 4,212,494 2,639,210 7,329 413,221,954 670,683,811
NA Not available
1/ Raw coal is not produced at the work locations of surface at underground,
shops and yards, and mechanical cleaning plants.
Independent Mechanical
Year shops and cleaning Grand
yards plants total
1931 NA NA 441,750,978
1932 NA NA 359,565,093
1933 NA NA 383,171,877
1936 NA NA 416,536,313
1935 NA NA 424,632,005
1936 NA NA 491,138,762
1937 NA NA 498,792,928
1938 NA NA 395,696,632
1939 NA NA 447,976,639
1940 NA NA 512,808,119
1941 NA NA 569,884,209
1942 NA NA 640,020,862
1943 NA NA 652,977,029
1944 NA NA 684,949,989
1945 NA NA 631,523,395
1946 NA NA 593,976,297
1947 NA NA 685,162,007
1948 NA NA 650,002,980
1949 NA NA 478,919,743
1950 NA NA 562,305,024
1951 NA NA 574,960,112
1952 NA NA 509,967,137
1953 NA NA 486,403,820
1954 NA NA 420,885,156
1955 NA NA 491,467,627
1956 NA NA 528,446,799
1957 NA _ 514,705,691
1958 NA - 432,196,182
1959 NA - 432,574,447
1960 NA - 435,035,868
1961 NA - 420,728,977
1962 NA - 439,971,826
1963 NA - 478,629,347
1964 NA - 505,572,808
1965 NA - 527,993,041
1966 NA - 545,463,812
1967 NA - 560,764,372
1968 NA - 553,340,290
1969 NA - 569,182,115
1970 NA - 609,803,256
1971 NA - 562,720,223
1972 - - 534,586,073
1973 - - 557,949,444
1974 - - 565,773,663
1975 - - 611,130,323
1976 - - 647,086,916
1977 - - 670,683,811
NA Not available
1/ Raw coal is not produced at the work locations of surface at underground,
shops and yards, and mechanical cleaning plants.
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