| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| coal mining in the us | 1.83 | 0.6 | 3280 | 14 |
| coal mining in the uk | 0.83 | 1 | 8676 | 69 |
| coal mining in the midwest | 1.93 | 0.3 | 6480 | 36 |
| coal mining in the united states wikipedia | 0.07 | 0.9 | 4836 | 59 |
| coal mining in the philippines | 1.65 | 1 | 5679 | 15 |
| coal mining in the 1800s | 0.69 | 1 | 1856 | 26 |
| coal mining in the rhondda | 1.89 | 0.3 | 4850 | 32 |
| coal mining in the victorian era | 1.12 | 0.7 | 2997 | 49 |
| coal mining in the 1900s | 0.37 | 0.8 | 1426 | 32 |
| coal mining in the appalachian mountains | 0.8 | 0.1 | 7941 | 9 |
| coal mining in the industrial revolution | 0.88 | 0.2 | 7212 | 19 |
| machines used in coal mining | 0.73 | 0.4 | 1179 | 24 |
| coal mining companies in usa | 1.78 | 0.6 | 536 | 94 |
| coal mining usa | 0.03 | 0.3 | 1109 | 74 |
| does mining of coal use energy | 0.86 | 0.9 | 8697 | 78 |
| history of coal mining in the united states | 0.74 | 0.6 | 5137 | 74 |
| metal tags used during coal mining | 0.57 | 0.5 | 5082 | 95 |
| coal mining states in usa | 1.42 | 0.7 | 5087 | 4 |
| coal mining history in usa | 1.29 | 1 | 8195 | 52 |
