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Name: Twmbarlwm topographic map, elevation, terrain.
Location: Twmbarlwm, Risca, Caerphilly County Borough, Wales, NP11 6FY, United Kingdom (51.62762 -3.09379 51.62772 -3.09369)
Average elevation: 250 m
Minimum elevation: 51 m
Maximum elevation: 417 m