| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| portal to texas history maps | 0.45 | 0.9 | 1168 | 21 |
| portal to texas historical maps | 0.65 | 0.9 | 7706 | 40 |
| texas portal of texas history | 0.35 | 0.9 | 6135 | 44 |
| the portal to texas history | 1.17 | 0.4 | 6469 | 82 |
| the portal to texas history website | 1.98 | 0.1 | 4894 | 66 |
| state of texas railroad map | 0.96 | 0.7 | 5559 | 26 |
| portal of texas history online | 1.67 | 0.1 | 4606 | 87 |
| old texas railroad maps | 1.65 | 0.7 | 1580 | 8 |
| texas railroad map today | 1.02 | 0.6 | 8953 | 28 |
| railroad map of texas | 2 | 0.4 | 548 | 54 |
| portal to tx history | 1.65 | 0.1 | 6076 | 92 |
| map of texas railroads | 1.19 | 0.3 | 4247 | 25 |
| texas portal to history | 1.7 | 1 | 1889 | 96 |
| portal to texas history search | 0.92 | 1 | 1939 | 53 |
| portal to texas history online | 0.14 | 0.4 | 7192 | 3 |
| portal to texas history photos | 1.66 | 1 | 5176 | 98 |
| the portal to texas history archives | 1.5 | 0.1 | 9633 | 26 |
| portal to texas historic sites | 1.83 | 0.1 | 1728 | 58 |
| portal to texas history genealogy | 1.4 | 0.4 | 6631 | 30 |
| portal of texas history newspaper | 0.45 | 0.5 | 9094 | 44 |
| historical maps of texas | 1.98 | 0.9 | 2292 | 25 |
