What is recorded here
The National Monuments Record of Wales records Hen Dy-Aderyn Triangulation Point as Triangulation Point from the Modern period. The saved point comes from the official national record. Inclusion does not by itself mean that the public may enter the place.
The historic-place record does not grant public access. Check current conditions and ownership before entering land or a building.
Places near here
Twr Pen Cryn, Cairn II ;Hen Dy-Aderyn, CairnCairn · 12 yd
Patterned ground with Neolithic cairn in backgroundAncient tomb or cairn · 230 yd
Darren Cilau Cave LlangattockCave · 1055 yd
Darren DisgwylfaCliff · 1471 yd
Quarry tramway alignmentOld home or work place · 1500 yd
Pant y Rhiw Quarry IIIQuarry · 1561 yd
Eglwys Faen CaveCave Occupation · 1693 yd
Craig y Cilau National Nature ReserveNature reserve · 1.3 mi
Trees reflected in the Monmouthshire and Brecon CanalHeritage place · 1.5 mi
Craig y CilauVisitor information · 1.7 mi
Pen Cerrig-calch and Table MountainMountain or hill · 1.8 mi
Brynmawr and District MuseumMuseum · 1.9 mi