GRWYNE-VAWR (GRWYNAU-VAWR), a hamlet, in the parish and hundred of TALGARTH, county of BRECKNOCK, SOUTH WALES, 61 miles (N.
E.) from Crickhowel, containing 21 inhabitants. This hamlet takes its name from the Grwyney-Vawr stream, which rises in
the fastnesses of the Black mountains, passes through the vale here, in the same wild district, and falls into the river
Usk near the border of Monniouthshire. It forms the south-eastern extremity of the parish, and is bounded on the east by a
detached portion of the county of Hereford. The population is exclusively agricultural. The average annual expenditure for
the support of the poor amounts to £14. 17.