Mynydd Twyn-glas is a sprawling 472-metre-high mountain extending into Caerphilly and Torfaen county boroughs in South Wales. It lies southwest of Pontypool, west of Cwmbran and east of Newbridge and taking the form of a rolling plateau the margins of which are defined by steep slopes, many of which are cloaked with conifer plantations. A broad shoulder extending south from the summit is known as Mynydd Maen whilst to the north is Mynydd Llwyd. The thickly afforested northern slopes of the hill drop down steeply into Cwm y Glyn. It is a UK listed Marilyn.

Mark

December 15, 2021

Hiking

Cracking local walk, gain height for amazing views and walk over to twmbarlwm

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Best routes to Trig point at Mynydd Twyn-glas summit

3.8

(5)

hikers

1. Blaen Bran Reservoir – View of Blaen Bran Reservoir loop from Greenmeadow

8.60km

02:39

310m

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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Moderate

4.5

(2)

hikers

2. Blaen Bran Reservoir – View of Blaen Bran Reservoir loop from Greenmeadow

15.9km

04:34

360m

370m

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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Moderate

4.3

(3)

hikers

3. Cwmcarn Pond – View of the River Severn loop from Abercarn

17.7km

05:10

440m

Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.

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Hard

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Elevation 460 m

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Saturday 14 February

6°C

-2°C

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Location: Upper Cwmbran, South Wales, Wales, United Kingdom

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Trig point at Mynydd Twyn-glas summit

1. Blaen Bran Reservoir – View of Blaen Bran Reservoir loop from Greenmeadow

2. Blaen Bran Reservoir – View of Blaen Bran Reservoir loop from Greenmeadow

3. Cwmcarn Pond – View of the River Severn loop from Abercarn

Other Popular Places to Check Out

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