| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| railroad lines in the usa | 1.83 | 0.2 | 1489 | 44 |
| railroad lines in the us | 0.6 | 0.9 | 6746 | 31 |
| map of railroad lines in usa | 1.45 | 0.1 | 8701 | 39 |
| us railroad lines by ownership | 1.03 | 0.2 | 5583 | 88 |
| railroad lines us map | 0.4 | 0.8 | 4791 | 58 |
| rail lines in the us | 1.25 | 1 | 9978 | 56 |
| map of rail lines in the usa | 0.46 | 0.3 | 1670 | 19 |
| railroads in the usa | 1.93 | 0.5 | 7627 | 46 |
| rail lines in america | 1.92 | 0.9 | 6288 | 55 |
| railroad in the us | 1.82 | 0.5 | 8685 | 8 |
| train lines in the us | 1.76 | 0.3 | 9861 | 75 |
| map of rail lines in the us | 0.25 | 0.9 | 8830 | 42 |
| us railroad lines map | 0.98 | 0.6 | 2071 | 75 |
| railroads in the united states | 1.21 | 1 | 8057 | 6 |
| north american railroad lines | 1.14 | 0.5 | 7085 | 85 |
| united states rail lines | 1.21 | 0.4 | 6616 | 5 |
| railroads in usa map | 0.5 | 1 | 4125 | 6 |
| train lines in united states | 0.78 | 0.7 | 5394 | 89 |
| railroads in the us map | 1.79 | 0.5 | 4208 | 71 |
