Image 1: Llyn Felin Gat cleared of silt, with original island in the middle.
Image 2: Stone used to decorate weir in Llyn Felin Gat.
Image 3: Original stonework from Llyn Felin Gat Dam.
Image 4: Retouched stonework on Llyn Mawr cascade/primary spillway.
Image 5: Far end of Llyn Mawr Dam.
Images 6 + 7: Bridge abutments to Grier Bridge and Horn Bridge on Llyn Mawr dam.