page_title: Gwaun Troed-rhiw-seiri a Llyn Mynydd-gorddu
hierarchical_section_title: Gwaun Troed-rhiw-seiri a Llyn Mynydd-gorddu
caption_attribution_description: English: Reservoir at Mynydd-Gorddu This reservoir was probably made to provide power for the small mines in the valley just below which are marked on older versions of the Ordnance Survey maps.
context_page_description: Gwaun Troed-rhiw-seiri a Llyn Mynydd-gorddu is a Site of Special Scientific Interest in Ceredigion, west Wales.
context_section_description: Gwaun Troed-rhiw-seiri a Llyn Mynydd-gorddu is a Site of Special Scientific Interest in Ceredigion, west Wales.
caption: Llyn Mynydd-gorddu in June 2009
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