Archaeological remains associated with the loss of this vessel are not confirmed as present at this location, but may be in the vicinity.

Event and Historical Information:
The DAGMAR was a wooden barque built in 1854. Technical and configuration specifications are given as 433nt; 122ft 3in length x 30ft 7in breadth x 16ft 8in depth.
At time of loss on 9 December 1886, the vessel was owned by L Juersen of Larvik and under the command of A Hansen. The barque was bringing a cargo of deals from Miramichi, New Brunswick, to Liverpool, when it was caught in a north-northwesterly force 10 gale. The DAGMAR was blown onshore and wrecked at Porth Tywyn Mawr. The Coxswain of the Holyhead lifeboat received a silver medal for saving the crew of the DAGMAR and the crews from three other vessels, all on the same day (21 lives in total).

Sources include:
Board of Trade Wreck Return 1886 Appendix C Table 1 pg130 (896)
Larn and Larn shipwreck database 2002
Wynne-Jones, I, 2001, Shipwrecks of North Wales, pg65

Maritime Officer, RCAHMW, June 2009.