A view of Elidir Fawr (924m) East face . Marchlyn Mawr reservoir is below in Cwm Marchlyn.
The Marchlyn Mawr Reservoir is the upper lake of the Dinorwig Pump Storage Scheme.
Water is stored at 636 metres (2,087 ft) above sea level in Marchlyn Mawr reservoir.
When power needs to be generated, water from the reservoir is sent down
through turbines into Llyn Peris, which is at approx. 100 metres (330 ft).
Water is pumped back from Llyn Peris to Marchlyn Mawr during off-peak times.
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A path from Carnedd y Filiast heads South to Mynydd Perfedd , then West to this view.
Ref: NW 3411
Date: 17/07/2024
Location: SH 6205 6162