Dumbuck Crannog, semi-submerged remains of high status building from the iron-age.

Dumbuck Crannog, River Clyde, Dumbarton, Scotland

This evening, I am posting information on Dumbuck Crannog which is located in the Firth of Clyde (estuary) near Dumbarton, about twenty-one miles North-West of Glasgow in S.W. Scotland.
Crannogs were high status domestic dwellings unique to Scotland and Ireland during the Iron-Age, about two thousand years ago. The structures were typically circular, made of wood and housed an extended family together with livestock. Crannogs were were built on the beds of lochs (lakes) or rivers, using foundations of either man-made (or natural) islands or wooden piles driven into the bed. Crannogs were usually positioned a few metres offshore to allow access via a short causeway or by boat. For illustration purposes, an image of a reconstructed Crannog on Loch Tay ( central Scotland) is provided at foot of this post.

Key information on the Dumbuck Crannog:-
  • Situated in mud flats below the high tide mark.
  • Fully exposed for six hours at low tide.
  • An oval site measuring 38m east-east and 30m north-south.
  • Stone and timber structures are visible at low tide.
  • Excavated in 1898 when archaeologists discovered:
    • a circle of 27 oak piles enclosing an area 15.2m in diameter within which was a floor of horizontal timbers; and
    • a dug-out canoe made from oak situated in a dock-type structure connected to the Crannog by a causeway.
  • A survey in 1990s found a stone breakwater surrounding the wooden platform.
  • An excavation in 2000 revealed that the Crannog was constructed by a technique of placing branches radially over a circumference of foundation beams.
The remains of at least three other crannogs have been found in the area although Dumbreck is the best preserved.

A fascinating piece of local heritage and of considerable antiquity. I reached the site by parking close to Dumbarton Castle and walking east for about half a mile by following a rough trail which follows the north bank of the Clyde at the high water mark. The site is best photographed using a long lens at low tide. Grid reference is NS4157 7392

Dumbuck Crannog, River Clyde, Scotland

Dumbuck Crannog, River Clyde, Scotland

 Dumbuck Crannog, Scotland

Here is pic of reconstructed Crannog at Kenmore, Loch Tay, central Scotland.



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