5 miles from Garthyfog....
The Mawddach rises to the north of the Rhobell
Fawr Mountain and flows through Ganllwyd, Llanelltyd and Penmaenpool and on
through its long estuary to the sea at Barmouth.
Upper reaches of the River
On the Mawddach, as with most other rivers in Gwynedd, there is
a marked contrast between the upper reaches - steep and rocky, requiring great
care in wet weather - and the gentler lower reaches, some of them quite short,
where the course meanders through meadows or woodland.
Bontwernddu pool on the River
The Mawddach's largest tributary is the Wnion, a very fine sea
trout river, while the smaller River Eden is also a valuable game fishery.
Following a major pollution in 1984, when 2000 adult salmon and
sea trout were killed along with many thousands of juvenile fish, The Mawddach
Trust was formed to restock the river from a purpose-built hatchery.
The Mawddach and its tributaries contain neither grayling nor
coarse fish. As a result, coarse angling in this part of Wales is confined to
Apart from some early season olives and the ubiquitous iron blue and blue-winged
olive, it is to the sedge flies, stoneflies and, in particular, terrestrial
insects that river trout fishers should turn their attention on the Gwynedd
rivers, and the Mawddach is no exception.
Season dates and byelaws
Salmon and sea trout: 20 March to 17 October. Fly and spinner only from 20
March to 15 April and from 7 October to 17 October.
Trout (non-migratory): 3 March to 30 September, except for
downstream of the following points:
Mawddach, Llenelltyd Bridge (A470)
Wnion, Dr Williams' School footbridge below Dolgellau.
On these lower reaches the trout-fishing season dates are 31 May
to 30 September.
Note: Please check the Environment Agency Wales
latest edition byelaws booklet before you go fishing, as changes may have
occurred since our information was last updated.