Boyd County Historical Production Figures |
| YEAR | SURFACE | UNDERGROUND | TOTAL |
| 1838 | 0 | 1,000 | 1,000 |
| 1839 | 0 | 1,000 | 1,000 |
| 1840 | 0 | 1,000 | 1,000 |
| 1841 | 0 | 1,000 | 1,000 |
| 1842 | 0 | 1,000 | 1,000 |
| 1843 | 0 | 1,000 | 1,000 |
| 1844 | 0 | 1,000 | 1,000 |
| 1845 | 0 | 1,000 | 1,000 |
| 1846 | 0 | 1,000 | 1,000 |
| 1847 | 0 | 1,000 | 1,000 |
| 1848 | 0 | 1,000 | 1,000 |
| 1849 | 0 | 1,000 | 1,000 |
| 1850 | 0 | 1,000 | 1,000 |
| 1851 | 0 | 1,000 | 1,000 |
| 1852 | 0 | 1,000 | 1,000 |
| 1853 | 0 | 1,000 | 1,000 |
| 1854 | 0 | 1,000 | 1,000 |
| 1855 | 0 | 1,000 | 1,000 |
| 1856 | 0 | 1,000 | 1,000 |
| 1857 | 0 | 1,000 | 1,000 |
| 1858 | 0 | 1,000 | 1,000 |
| 1859 | 0 | 1,000 | 1,000 |
| 1860 | 0 | 1,000 | 1,000 |
| 1861 | 0 | 1,000 | 1,000 |
| 1866 | 0 | 1,000 | 1,000 |
| 1867 | 0 | 1,400 | 1,400 |
| 1868 | 0 | 1,800 | 1,800 |
| 1869 | 0 | 2,236 | 2,236 |
| 1870 | 0 | 29,500 | 29,500 |
| 1871 | 0 | 25,500 | 25,500 |
| 1872 | 0 | 34,500 | 34,500 |
| 1873 | 0 | 35,000 | 35,000 |
| 1874 | 0 | 46,000 | 46,000 |
| 1875 | 0 | 77,000 | 77,000 |
| 1876 | 0 | 108,000 | 108,000 |
| 1877 | 0 | 139,000 | 139,000 |
| 1878 | 0 | 170,000 | 170,000 |
| 1879 | 0 | 202,516 | 202,516 |
| 1880 | 0 | 200,000 | 200,000 |
| 1881 | 0 | 196,000 | 196,000 |
| 1882 | 0 | 192,000 | 192,000 |
| 1883 | 0 | 188,000 | 188,000 |
| 1884 | 0 | 184,000 | 184,000 |
| 1885 | 0 | 180,000 | 180,000 |
| 1886 | 0 | 115,500 | 115,500 |
| 1887 | 0 | 145,945 | 145,945 |
| 1888 | 0 | 158,100 | 158,100 |
| 1889 | 0 | 163,124 | 163,124 |
| 1890 | 0 | 183,521 | 183,521 |
| 1891 | 0 | 178,297 | 178,297 |
| 1892 | 0 | 162,557 | 162,557 |
| 1893 | 0 | 153,313 | 153,313 |
| 1894 | 0 | 111,659 | 111,659 |
| 1895 | 0 | 170,443 | 170,443 |
| 1896 | 0 | 121,022 | 121,022 |
| 1897 | 0 | 172,888 | 172,888 |
| 1898 | 0 | 138,695 | 138,695 |
| 1899 | 0 | 159,421 | 159,421 |
| 1900 | 0 | 165,703 | 165,703 |
| 1901 | 0 | 182,976 | 182,976 |
| 1902 | 0 | 249,731 | 249,731 |
| 1903 | 0 | 261,634 | 261,634 |
| 1904 | 0 | 94,506 | 94,506 |
| 1905 | 0 | 47,533 | 47,533 |
| 1906 | 0 | 50,897 | 50,897 |
| 1907 | 0 | 57,725 | 57,725 |
| 1908 | 0 | 79,763 | 79,763 |
| 1909 | 0 | 96,157 | 96,157 |
| 1910 | 0 | 98,745 | 98,745 |
| 1911 | 0 | 111,631 | 111,631 |
| 1912 | 0 | 97,388 | 97,388 |
| 1913 | 0 | 110,265 | 110,265 |
| 1914 | 0 | 88,318 | 88,318 |
| 1915 | 0 | 73,383 | 73,383 |
| 1916 | 0 | 72,439 | 72,439 |
| 1917 | 0 | 107,145 | 107,145 |
| 1918 | 0 | 110,644 | 110,644 |
| 1919 | 0 | 62,790 | 62,790 |
| 1920 | 0 | 128,106 | 128,106 |
| 1921 | 0 | 44,232 | 44,232 |
| 1922 | 0 | 104,361 | 104,361 |
| 1923 | 0 | 141,535 | 141,535 |
| 1924 | 0 | 125,142 | 125,142 |
| 1925 | 0 | 45,234 | 45,234 |
| 1926 | 0 | 37,627 | 37,627 |
| 1927 | 0 | 52,409 | 52,409 |
| 1928 | 0 | 65,544 | 65,544 |
| 1929 | 0 | 100,594 | 100,594 |
| 1930 | 0 | 66,139 | 66,139 |
| 1931 | 0 | 74,544 | 74,544 |
| 1932 | 0 | 55,232 | 55,232 |
| 1933 | 0 | 81,799 | 81,799 |
| 1934 | 0 | 57,400 | 57,400 |
| 1935 | 0 | 37,294 | 37,294 |
| 1936 | 0 | 32,950 | 32,950 |
| 1937 | 0 | 50,568 | 50,568 |
| 1938 | 0 | 32,914 | 32,914 |
| 1939 | 0 | 30,482 | 30,482 |
| 1940 | 0 | 34,874 | 34,874 |
| 1941 | 0 | 76,648 | 76,648 |
| 1942 | 0 | 148,499 | 148,499 |
| 1943 | 0 | 71,834 | 71,834 |
| 1944 | 0 | 108,335 | 108,335 |
| 1945 | 0 | 68,677 | 68,677 |
| 1946 | 0 | 630,619 | 630,619 |
| 1947 | 339,454 | 346,700 | 686,154 |
| 1948 | 182,911 | 348,314 | 531,225 |
| 1949 | 0 | 368,157 | 368,157 |
| 1950 | 215,330 | 298,758 | 514,088 |
| 1951 | 275,219 | 244,527 | 519,746 |
| 1952 | 320,705 | 114,742 | 435,447 |
| 1953 | 243,006 | 91,091 | 334,097 |
| 1954 | 203,242 | 228,527 | 431,769 |
| 1955 | 287,465 | 77,623 | 365,088 |
| 1956 | 125,460 | 57,950 | 183,410 |
| 1957 | 200,219 | 65,538 | 265,757 |
| 1958 | 240,560 | 98,610 | 339,170 |
| 1959 | 274,044 | 100,939 | 374,983 |
| 1960 | 0 | 36,519 | 36,519 |
| 1961 | 55,329 | 35,379 | 90,708 |
| 1962 | 32,493 | 23,657 | 56,150 |
| 1963 | 39,190 | 18,072 | 57,262 |
| 1964 | 0 | 16,029 | 16,029 |
| 1965 | 5,000 | 853 | 5,853 |
| 1966 | 0 | 1,388 | 1,388 |
| 1967 | 19,987 | 1,600 | 21,587 |
| 1968 | 0 | 1,230 | 1,230 |
| 1969 | 5,538 | 1,778 | 7,316 |
| 1970 | 38,896 | 1,500 | 40,396 |
| 1971 | 172,503 | 295 | 172,798 |
| 1972 | 213,731 | 15 | 213,746 |
| 1973 | 166,150 | 30 | 166,180 |
| 1974 | 184,964 | 0 | 184,964 |
| 1975 | 76,283 | 0 | 76,283 |
| 1976 | 267,343 | 0 | 267,343 |
| 1977 | 561,125 | 0 | 561,125 |
| 1978 | 646,640 | 0 | 646,640 |
| 1979 | 242,304 | 0 | 242,304 |
| 1980 | 336,929 | 0 | 336,929 |
| 1981 | 181,015 | 0 | 181,015 |
| 1982 | 192,610 | 0 | 192,610 |
| 1983 | 208,203 | 0 | 208,203 |
| 1984 | 307,783 | 0 | 307,783 |
| 1985 | 645,885 | 0 | 645,885 |
| 1986 | 66,165 | 0 | 66,165 |
| 1987 | 8,112 | 0 | 8,112 |
| 1988 | 199,462 | 0 | 199,462 |
| 1989 | 270,582 | 0 | 270,582 |
| 1990 | 401,537 | 0 | 401,537 |
| *NOTE: Source: |