Llyn Aled Isaf
|Date||28 July 2012|
|Location||Mynydd Hiraethog (Denbigh Moors)||SH 91510 59874; 53.12495°N, 3.62274°W|
The Afon Aled, a tributary of the Afon Elwy, was dammed at Rhyd y Bedd in 1938, creating the Llyn Aled Isaf reservoir. The latter is linked to Llyn Aled further upstream, and both were originally intended to supply water to Rhyl and Prestatyn. The necessary aqueduct was, however, never built and the reservoir now serves to regulate the flow of the Afon Aled.
When the level of the reservoir fell during a drought in 1974, evidence was discovered of Early to Late Mesolithic settlement, including flints, hearths and stake holes of possible campsites.