On Harris, at least two (and probably more) Hydrographic Survey Stations are marked on OS maps with triangles but are actually bolts:
TP7634 Tolmachain
TP7549 Greaval
Search found 1 match
- Fri Aug 07, 2026 5:05 pm
- Forum: TrigpointingUK Forum
- Topic: Ghost trigs
- Replies: 12
- Views: 13704