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Triangulation Pillar OSBM S2129: Bwlch Y Ddau-Wynt   

Grid reference: SN 79067 17419.
Landranger 160: Brecon Beacons.
Explorer OL12: Brecon Beacons National Park West & Central.
Waypoint: TP1826.

Neighbouring Triangulation Pillars
S2527 Careg Yr Ogof 4.24km to the north.
S2024 Cribarth 4.96km to the southeast.
S2116 Gareg Lwyd 5.06km to the west.
S5314 Gareg Lwyd 5.06km to the west.
2975 Trecastle 5.58km to the northeast.
The nearest fundamental bench mark is Llandovery, 15.36km to the north.