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Triangulation Pillar OSBM S2038: Cil-y-llyn   

Grid reference: SN 87371 08715.
Landranger 160: Brecon Beacons.
Explorer OL12: Brecon Beacons National Park West & Central.
Waypoint: TP2181.

Neighbouring Triangulation Pillars
S2037 Hirfynydd 3.62km to the west.
S2169 Blaen Cwm 5.50km to the north.
S2045 Craig-Y-Llyn 6.48km to the southeast.
S2148 Foel Penderyn 6.48km to the east.
S2024 Cribarth 7.11km to the northwest.
The nearest fundamental bench mark is Llandovery, 25.93km to the northwest.