Dam of Llyn Pond Gwaith Rather untypically, the dam of Llyn Pond Gwaith, a very shallow reservoir, is made from stacked stones.  The stone parcels bound together by wire mesh on the downstream side of the overflow appear to be recent re-enforcements.
<a rel="nofollow" class="external text" href="https://www.geograph.org.uk/profile/2520">Rudi Winter</a>
From <a rel="nofollow" class="external text" href="https://www.geograph.org.uk/photo/1703899">geograph.org.uk</a>