Marchlyn Mawr
Encyclopedia
Marchlyn Mawr reservoir
is a high level lake
in Snowdonia
behind Elidir Fawr
mountain. It is used as the high level water source for Dinorwig power station
, a closed-loop pumped storage hydroelectric generating facility
.
It is said that nearby lies the cave containing Arthur's
treasure, a source of bedazzlement to the wanderer who sees it, and of disaster to the pilferer who touches it.
Reservoir
A reservoir , artificial lake or dam is used to store water.Reservoirs may be created in river valleys by the construction of a dam or may be built by excavation in the ground or by conventional construction techniques such as brickwork or cast concrete.The term reservoir may also be used to...
is a high level lake
Lake
A lake is a body of relatively still fresh or salt water of considerable size, localized in a basin, that is surrounded by land. Lakes are inland and not part of the ocean and therefore are distinct from lagoons, and are larger and deeper than ponds. Lakes can be contrasted with rivers or streams,...
in Snowdonia
Snowdonia
Snowdonia is a region in north Wales and a national park of in area. It was the first to be designated of the three National Parks in Wales, in 1951.-Name and extent:...
behind Elidir Fawr
Elidir Fawr
Elidir Fawr is a mountain in Snowdonia, north Wales, the northernmost in the Glyderau. To the north of the summit is a small lake, Marchlyn Mawr, which is the upper reservoir for Dinorwig power station, a pump-storage power station hidden inside the mountain itself. The lower reservoir is Llyn Peris...
mountain. It is used as the high level water source for Dinorwig power station
Dinorwig power station
The Dinorwig Power Station is a pumped-storage hydroelectric scheme, near Dinorwig, Llanberis in Snowdonia national park in Gwynedd, north Wales...
, a closed-loop pumped storage hydroelectric generating facility
Hydroelectricity
Hydroelectricity is the term referring to electricity generated by hydropower; the production of electrical power through the use of the gravitational force of falling or flowing water. It is the most widely used form of renewable energy...
.
It is said that nearby lies the cave containing Arthur's
King Arthur
King Arthur is a legendary British leader of the late 5th and early 6th centuries, who, according to Medieval histories and romances, led the defence of Britain against Saxon invaders in the early 6th century. The details of Arthur's story are mainly composed of folklore and literary invention, and...
treasure, a source of bedazzlement to the wanderer who sees it, and of disaster to the pilferer who touches it.