| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| usgs historic quad maps | 0.45 | 0.9 | 4283 | 79 | 23 |
| usgs | 0.84 | 0.6 | 4785 | 9 | 4 |
| historic | 0.01 | 0.3 | 915 | 55 | 8 |
| quad | 1.74 | 0.9 | 6178 | 95 | 4 |
| maps | 1.68 | 0.9 | 3053 | 75 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| usgs historic quad maps | 0.47 | 0.3 | 5188 | 3 |
