coal mines in washington state | 0.21 | 0.2 | 7428 | 30 | 53 |
are there coal mines in washington state | 1.28 | 0.1 | 2623 | 40 | 89 |
coal in washington state | 1.31 | 0.9 | 100 | 24 | 41 |
mines in washington state | 1.14 | 0.1 | 8125 | 25 | 88 |
where to mine coal in wa state | 0.06 | 0.3 | 1715 | 30 | 37 |
washington state coal mine maps | 0.67 | 0.5 | 8832 | 31 | 82 |
mining in washington state | 1.66 | 0.9 | 9216 | 26 | 12 |
abandoned coal mines washington state | 1.61 | 0.6 | 1298 | 37 | 29 |
active mines in washington state | 0.98 | 0.9 | 8763 | 32 | 28 |
coal plants in washington state | 0.97 | 0.3 | 2493 | 31 | 34 |
washington state mines map | 0.71 | 0.2 | 9262 | 26 | 22 |
gold mines in washington state | 1.46 | 0.1 | 8090 | 30 | 69 |
history of mining in washington state | 0.59 | 0.3 | 7633 | 37 | 22 |
mining towns in washington state | 0.33 | 0.1 | 1324 | 32 | 37 |
mining companies in washington state | 0.96 | 0.5 | 8380 | 36 | 79 |
map of all mines in wa | 0.48 | 0.6 | 472 | 22 | 54 |
mine sites in wa | 0.5 | 0.7 | 6376 | 16 | 62 |