Dunbar, Tidal Observatory   

Observatory B.M. [2GL]; Dunbar Tidal Station Bolt [3GL]; TIDAL STA BOLT TIDAL STA BLDG 1.8M S ANG.

Location
Grid reference: NT 6786 7934.
Landranger 67: Duns, Dunbar & Eyemouth area.
Waypoint: TIDE02.

Neighbouring Flush Brackets

561	Dunbar, Westgate 243.31m to the south.
674	Dunbar, Town Hall 435.66m to the south.
557	Dunbar, Spott Road 881.02m to the southeast.
392	Dunbar, Knockenhair Road 1.04km to the southwest.
396	Dunbar, Slaughterhouse 1.20km to the southeast.

The nearest fundamental bench mark is Dunbar West, 1.03km to the southwest.

Second Geodetic Levelling, England & Wales (1912-21)
This bench mark was used during the Second geodetic levelling, England & Wales, and was levelled with a height of 12.8400 feet [3.9136 metres] above mean sea level (Newlyn datum). It was included on the Dunbar West to Dunbar Tidal Observatory levelling line. The surveyor's description was Observatory B.M.

Third Geodetic Levelling, England & Wales (1950-68)
This bench mark was used during the Third geodetic levelling, England & Wales. It was included on the Dunbar Circuit levelling line. The surveyor's description was Dunbar Tidal Station Bolt.

Third Geodetic Levelling, Scotland (1956-68)
This bench mark was used during the Third geodetic levelling, Scotland. It was included on the Dunbar Circuit levelling line.