Yn y fideo hwn, byddaf yn archwilio Nant-y-Gadwen, pwll manganîs oddi ar arfordir Pen Llŷn ger Aberdaron yn Ogledd Cymru. Byddaf yn adrodd hanes y pwll cyn mynd draw i draeth Porth Ysgo.

Roedd o'n wyntog iawn pan wnes i ffilmio, felly esgusodwch y gwaith camera sigledig!

Mwynhewch y fideo.
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Dolenni Defnyddiol
Manganese Mining at Rhiw: http://www.rhiw.com/hanes_pages/manganese.htm#:~:text=The%20Manganese%2…
Site of manganese tramroad, Porth Ysgo: https://historypoints.org/index.php?page=site-of-manganese-tramroad-nea…
Benallt Iron and Manganese Mine, Rhiw: https://coflein.gov.uk/en/site/63206/details/benallt-iron-and-manganese…
The Manganese Mines of North Wales: https://www.nmrs.org.uk/assets/lookinside/bm14lookinside.pdf