Labelled sheet from a photogrammetric survey of Piel Castle, showing the north and south elevations of the inner north curtain
- Date:
- 1980 - 1987
- Location:
- Piel Castle, Barrow, Piel Island, Barrow-in-Furness, Westmorland and Furness
- Reference:
- MP/PIE0051
- Type:
- Photogrammetric Survey