Elidir Fawr, Mountain summit in Snowdonia, Wales.
Elidir Fawr is a mountain in Snowdonia that rises approximately 924 meters with steep rocky slopes on its northern face overlooking Marchlyn Mawr lake. The jagged ridge and exposed stone surfaces give it a distinctive angular profile when viewed from surrounding valleys.
The name derives from Eliffer Gosgorddfawr, a 6th-century warrior king who commanded forces in the region and left his mark on local geography. This royal connection runs deep through the area's identity and storytelling traditions.
The summit draws walkers seeking connections to Welsh mountain traditions and the landscape that shapes local identity. People who climb here often participate in challenges that link them to a broader climbing community across Britain.
The ascent can be approached from several valleys including Deiniolen and Nant Peris, with trail quality varying by route and season. Proper hiking boots and weather protection are essential, as mountain conditions change quickly and exposed sections require careful footing.
Hidden within the mountain is the Dinorwig power station, which uses Marchlyn Mawr lake above as its reservoir for storing and generating electricity. Hikers ascending the slopes walk unknowingly over one of Britain's largest underground hydroelectric facilities.
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