Labelled survey sheet showing the north part of elevations D23 and D24 on the Dumpy level of Dover Castle's underground tunnels, with notes on benchmarks used and a location diagram
- Date:
- Feb 2009 - Mar 2009
- Location:
- Dover Castle, Underground Tunnels, Dumpy Level, Dover, Kent
- Reference:
- MP/DOV2809
- Type:
- Measured Survey