Gen. Henry Knox Trail Portal in Old Hill Massachusetts United States
| # | Image | Mod | Area | L | R | HP | Days |
|---|---|---|---|---|---|---|---|
| 21 |  Gen. Henry Knox Trail | PS SB TR PS | -- | 6 | 8 | 66% | 403 |
| 22 |  Gen. Henry Knox Trail | -- | 1 | 0 | 0% | 67 | |
| 23 |  Gen. Henry Knox Trail | -- | 1 | 0 | 0% | 176 | |
| 24 |  Gen. Henry Knox Trail | -- | 1 | 2 | 100% | 84 | |
| 25 |  Gen. Henry Knox Trail | AX PS PS | -- | 7 | 8 | 55% | 178 |
| 26 |  Gen. Henry Knox Trail | -- | 1 | 0 | 0% | 181 | |
| 27 |  Gen. Henry Knox Trail | -- | 1 | 0 | 0% | 40 | |
| 28 |  Gen. Henry Knox Trail | -- | 1 | 1 | 40% | 117 | |
| 29 |  Gen. Henry Knox Trail | -- | 1 | 0 | 0% | 85 | |
| 30 |  Gen. Henry Knox Trail | -- | 1 | 2 | 100% | 142 |