Mawddach River, [62].

Menai Bridge, [130].

Moel Siabod, [101].

Mortimer, Roger, Earl of Wigmore, [28].

Morwynion, Llyn, [65].

Nannau Park, [59].

Offa’s Dyke, [29].

Ogwen Llyn, and Falls of Benclog, [101], [102].

Orme’s Head, the Great, [126].

Padarn Llyn, [97].