Top definition
Trefechan is a village north of Merthyr tydfil in South wales UK.
Small very nice modern village on the edge of the Brecon beacons in wales, fantastic countryside, nearest other village cefn Coed y cymmer approx 2 miles.

cefn is where the local trefechan people have to go foe a beer in the three pubs and clubs they have there.

the main towns in the area are Aberdare, merthyr, and Brecon
by creweman April 27, 2008
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