Observation posts used during wartime to monitor and report enemy aircraft, forming a vital part of the UK’s air defence network.
| Name | Location | Condition | Date Visited | Photo |
|---|---|---|---|---|
| Sacriston | NZ 22238 47991 | Good | 25-09-2021 |  |
Small fortified concrete structures built to house troops and weapons, designed to defend key locations against enemy attack.
| Name | Location | Condition | Date Visited | Photo |
|---|---|---|---|---|
| Dunston | NZ 42221 56252 | Good | 23-01-2021 |  |
| Herrington Hill | NZ 3487 5293 | Good | 02-04-2022 |  |
| Seaton Sluice (S0007245) | NZ 3350 7690 | Good | 01-11-2025 | .jpg) |
| Seaton Sluice (S0013256) | NZ 3355 7690 | Good | 01-11-2025 | .jpg) |