CAER-EINION-VECHAN, a township, in that part of the parish of MALLWYD which is in the hundred of MACHYNLLETH, county of MONTGOMERY, NORTH WALES, 10 miles (N. E.) from Machynlleth, containing 139 inhabitants. It is situated on the left bank of the Dovey, and is the only portion of the parish in this county, the remainder being in the county of Merioneth: the district is extremely mountainous.