Number of Active Mines (employee hours > 0) by State by Commodity, 2008 (Data source: MSHA)


Commodity based on CANVASS (recoded) Total
Coal Metal Nonmetal Stone Sand & gravel
State/territory Alabama 76 3 19 83 83 264
Alaska 1 32 0 26 92 151
Arizona 1 22 28 96 265 412
Arkansas 2 7 23 105 55 196
California 0 14 43 146 395 598
Colorado 14 23 9 55 270 371
Connecticut 0 0 1 41 71 113
Delaware 0 1 0 0 8 9
Florida 0 2 25 115 62 204
Georgia 0 0 53 127 45 225
Hawaii 0 0 0 33 44 77
Idaho 0 18 14 47 175 254
Illinois 36 1 6 150 121 314
Indiana 43 0 10 109 145 307
Iowa 0 1 9 147 152 309
Kansas 3 0 13 105 92 213
Kentucky 656 0 12 103 23 794
Louisiana 2 1 16 5 125 149
Maine 0 0 2 31 168 201
Maryland 26 0 2 39 24 91
Massachusetts 0 0 2 53 100 155
Michigan 0 8 5 35 424 472
Minnesota 0 14 5 74 488 581
Mississippi 1 0 13 5 83 102
Missouri 2 7 16 247 92 364
Montana 7 16 8 56 220 307
Nebraska 0 0 1 13 156 170
Nevada 0 47 34 24 140 245
New Hampshire 0 0 0 25 100 125
New Jersey 0 1 1 21 57 80
New Mexico 6 11 34 59 122 232
New York 0 4 14 189 343 550
North Carolina 0 2 42 130 96 270
North Dakota 5 0 2 2 106 115
Ohio 76 1 19 122 193 411
Oklahoma 8 0 25 158 78 269
Oregon 0 10 13 190 108 321
Pennsylvania 425 1 11 394 107 938
Rhode Island 0 0 0 9 16 25
South Carolina 0 0 18 35 50 103
South Dakota 0 2 7 17 130 156
Tennessee 33 6 20 170 51 280
Texas 15 10 60 360 295 740
Utah 23 17 22 33 235 330
Vermont 0 0 1 102 96 199
Virginia 166 1 13 107 48 335
Washington 1 7 8 114 211 341
West Virginia 479 3 2 37 2 523
Wisconsin 0 0 5 212 399 616
Wyoming 22 0 34 12 137 205
Puerto Rico 0 0 0 62 30 92
Virgin Islands 0 0 0 3 0 3
Total 2129 293 720 4633 7132 14907

Page last updated: July 8, 2010
Page last reviewed: March 30, 2011
Content Source: National Institute for Occupational Safety and Health (NIOSH) Mining Division