| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| how long was the inca road system | 0.5 | 0.2 | 6517 | 45 |
| what was the inca road system | 1.26 | 0.6 | 1996 | 27 |
| when was the inca road system built | 0.11 | 1 | 3084 | 74 |
| inca road system facts | 1.13 | 0.7 | 2433 | 93 |
| road system of inca | 1.54 | 0.5 | 1571 | 25 |
| how did inca develop their road system | 0.63 | 0.8 | 8087 | 17 |
| inca road system 18000 miles | 1.53 | 0.2 | 7118 | 16 |
| map of inca road system | 1.9 | 0.2 | 9979 | 99 |
| inca road system wikipedia | 1.43 | 0.6 | 776 | 83 |
| how many roads did the inca have | 0.16 | 0.8 | 1664 | 65 |
| why was the inca road system important | 0.36 | 0.2 | 6977 | 94 |
| inca empire road system | 1.22 | 0.5 | 4673 | 92 |
| how did the inca build their roads | 0.8 | 0.7 | 4486 | 69 |
| why did the inca make a road | 0.54 | 0.5 | 3416 | 92 |
| did the incas have roads | 2 | 0.6 | 7128 | 21 |
| how long were the incas around for | 1.69 | 0.2 | 8928 | 62 |
| time frame of inca | 1.14 | 0.4 | 4084 | 88 |
