Historical Marker Portals in US AU
| # | Image | Mod | Area | L | R | HP | Days |
|---|---|---|---|---|---|---|---|
| 21 |  Historical Marker | PS FA | -- | 1 | 2 | 46% | 85 |
| 22 |  Historical Marker | LA PS | -- | 5 | 8 | 58% | 151 |
| 23 |  Historical Marker | -- | 1 | 0 | 0% | 140 | |
| 24 |  Historical Marker | -- | 1 | 0 | 0% | 139 | |
| 25 |  Historical Marker | PS TR HS PS | -- | 6 | 8 | 85% | 74 |
| 26 |  Historical Marker | PS PS PS PS | -- | 1 | 1 | 100% | 74 |
| 27 |  Historical Marker | -- | 1 | 0 | 0% | 37 | |
| 28 |  Historical Marker | -- | 1 | 0 | 0% | ∞ | |
| 29 |  Historical Marker | -- | 1 | 0 | 0% | 117 | |
| 30 |  Historical Marker | PS PS | -- | 1 | 1 | 100% | 176 |