UWCH-AVON, a division, in the parish of GWYDDELWERN, hundred of EDEYRNION, county of MERIONETH, NORTH WALES; comprising the united hamlets of Badheulog, Cynwyd Vawr, Cynwyd Vechan, and Persaithydd: the population is included in the return for the parish. The village of Cynwyd, situated on the road from Corwen to Bala and Dinas Mowddwy, 2 miles (S. W.) from Corwen, is noted as the place where a court for the thirteen baronies contained within the comot of Edeyrnion was anciently held, chiefly for the purpose of settling the boundaries of the lords' claims upon the wastes and commons, and for taking cognizance of encroachments; but a disagreement arising among the lords, the records were destroyed, and the court has since been discontinued. The river Trustlon runs through this village, about half a mile above which it pours its waters over a precipitous ledge of rocks, upwards of sixty feet high, and forms a pleasing cascade; the first fall rushes through a narrow chasm, about fbrty feet in perpendicular height, and is received into a basin, measuring at least ten feet in diameter, whence it pursues its course for several yards%long a rocky ridge, and then rolls over, in three falls of about twenty feet, into a natural reservoir more capacious than the former; within a short distance of this, after passing through the dingle and the village, it empties itself into the Dee. There are two flannel manufactories and a corn-mill upon this stream; the latter of which, situated near the bottom of the waterfall, contributes materially to the picturesque character of the scenery, which from the rocky declivities being in many places well clothed with wood, is pleasing and attractive. Fairs are held on August 6th and October 21st. A school-room was built at Cynwyd by subscription, in consequence of a bequest of £200 by Hugh Roberts, in 1807, the produce to be applied to the instruction of children of the Uwch-Avon division, and the parish of Llangar, two-thirds to the former, and one-third to the latter; and there are places of worship for Baptists, and Calvinistic and Wesleyan Methodists. Morris Edwards, in 1822, bequeathed £100 for the benefit of the poor of the division, the interest of which is regularly distributed among them at Christmas. Near T5"n-y- Wern is a remarkably fine oak, about ninety feet high, the trunk of which, at the distance of seven feet from the ground, measures twenty feet in girth, and one of its branches thirteen; and there is also in the vicinity a very large elm-tree, eleven feet in circumference.