| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| railroad maps 1920 | 1.95 | 0.6 | 7785 | 16 | 18 |
| railroad | 0.77 | 0.3 | 9236 | 98 | 8 |
| maps | 1.45 | 0.1 | 7828 | 83 | 4 |
| 1920 | 0.44 | 0.7 | 856 | 7 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| railroad map 1920 | 1.85 | 0.2 | 2205 | 69 |
| railroad map 1910 | 0.9 | 0.8 | 861 | 95 |
| at&sf railroad map 1920 | 1.92 | 0.5 | 1808 | 87 |
| oklahoma railroad map 1920 | 1.18 | 0.2 | 7465 | 11 |
| iowa railroad map 1920 | 1.97 | 0.8 | 3152 | 58 |
| 1920 wisconsin railroad map | 0.18 | 0.6 | 6637 | 4 |
| georgia railroad map 1920 | 0.27 | 0.1 | 5843 | 73 |
| florida railroad map 1920 | 1.2 | 0.7 | 227 | 16 |
| railroad map of the us 1920 | 0.95 | 0.8 | 111 | 57 |
| 1920 railroad maps | 1.18 | 0.9 | 1067 | 25 |
| railroad map 1900 | 1.76 | 1 | 1934 | 63 |
| railroad map 1950 | 0.1 | 0.3 | 9743 | 48 |
| missouri railroad map 1910 | 0.61 | 0.4 | 8451 | 36 |
| wisconsin railroad map 1910 | 1.32 | 0.5 | 4712 | 99 |
| texas railroad map 1910 | 1.53 | 0.2 | 9046 | 66 |
| north dakota railroad map 1910 | 0.17 | 0.9 | 4610 | 73 |
| tanana valley railroad map 1910 | 0.81 | 0.2 | 4308 | 98 |
| us railroad map 1910 | 1.53 | 0.9 | 6035 | 96 |
