Twmpath Motte, Rhiwbina is located on the edge of a housing estate and on the immediate south side of the M4 motorway. It is a ditched mound measuring 40m in diameter and 6.4m high, with a summit diameter of 15m.
source:
RCAHMW 1991, Glamorgan Inventory vol.III part 1a, p.68-70.

J.Wiles 07.02.03