Mynydd Twyn-glas

Mynydd Twyn-glas - Torfaen
© Colin Park and licensed for reuse under this Licence

Mynydd Twyn-glas is the 6775th highest peak in the British Isles and the 682nd tallest in Wales


472.0 m (1549 ft)


253.0 m (830 ft)

Survey method

Abney level


Knoll 35m N of trig point


Nearest town

Abersychan, Torfaen

OS map sheets

OS25: 152 (Newport & Pontypool / Casnewydd a Phont-y-pwl)
OS50: 171 (Cardiff & Newport, Pontypool)

Notes & comments

Knoll is 50cm higher than base of trig point; knoll 30m WNW of trig point is 30cm higher; trig point is at ST 25996 97816