1983-2007, Number of Active Mines (employee hours > 0) by Commodity by Year (Data source: MSHA)
Count


Commodity based on CANVASS (recoded) Total
Coal Metal Nonmetal Stone Sand & gravel
Year 1983 5496 940 1175 3680 5589 16880
1984 5538 841 1157 3718 5740 16994
1985 5256 750 1156 3842 6084 17088
1986 5115 711 1071 3599 6200 16696
1987 4918 722 1000 3605 6287 16532
1988 4674 746 984 3663 6415 16482
1989 4414 708 970 3614 6473 16179
1990 4320 640 983 3650 6565 16158
1991 4025 533 919 3627 6563 15667
1992 3703 469 855 3654 6316 14997
1993 3429 429 852 3681 6239 14630
1994 3268 413 835 3646 6199 14361
1995 2946 403 809 3649 6052 13859
1996 2689 381 781 3655 6026 13532
1997 2609 374 786 3712 6201 13682
1998 2493 343 801 3822 6443 13902
1999 2306 334 808 3962 6783 14193
2000 2124 309 821 4113 7046 14413
2001 2144 281 785 4282 7131 14623
2002 2065 256 763 4311 7125 14520
2003 1972 258 734 4357 7070 14391
2004 2011 251 741 4401 7074 14478
2005 2063 263 739 4490 7111 14666
2006 2113 280 741 4573 7178 14885
2007 2030 278 725 4639 7199 14871
Total 83721 11913 21991 97945 163109 378679

Page last updated: April 17, 2009
Page last reviewed: March 30, 2009
Content Source: National Institute for Occupational Safety and Health (NIOSH) Mining Division