Maentwrog Dam was built in the 1920s to provide a source of hydroelectric power for the Maentwrog power station. Later in 1965 the lake also became a source of cooling water for the Trawsyfynydd nuclear power station.

ionapawson

October 12, 2022

Mountain biking

Dam that is easy to ride over, and the last paved section when riding around the lake anti-clockwise.

51m

December 13, 2022

Running

Maentwrog Dam was built in the 1920s to provide a source of hydroelectric power. Later in 1965 the lake also became a source of cooling water for the nuclear power station.

In the know? Log-in to add a tip for other adventurers!

Routes here

Best routes to Maentwrog Dam

4.0

(18)

173

hikers

1. Around Llyn Trawsfynydd — Snowdonia National Park

13.3km

03:34

160m

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

Navigate

Send to Phone

Save

Moderate

4.4

(11)

hikers

2. Maentwrog Dam loop from Gellilydan

7.23km

01:58

100m

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Navigate

Send to Phone

Save

Easy

4.2

(5)

hikers

3. Maentwrog Dam loop from Gellilydan

9.39km

02:50

300m

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

Navigate

Send to Phone

Save

Moderate

Details

Informations

Elevation 260 m

Weather

Today

Tuesday 3 February

6°C

1°C

77 %

Additional weather tips

Max wind speed: 25.0 km/h

Most visited during

January

February

March

April

May

June

July

August

September

October

November

December

See routes here

Take Me There

Add komoot as a preferred source in your Google results

Add now

Location: Maentwrog, Gwynedd, North Wales, Wales, United Kingdom

Other Popular Places to Check Out

Trawsfynydd Nuclear Power Station

Rhosydd Quarry Ruins and Waterfall

Waterfall in Coed Hafod-y-Llyn

Llyn Trawsfynydd

Ruin of Quarry Manager's House (Plas Cwmorthin)

Moel-yr-hydd

Old Railway Track at Llyn Tanygrisiau

Winding Road in Parc Cenedlaethol Eryri

Llyn Cwmorthin

Ruins of Slate Building by the Lake

View of the Slate Quarry and Valley

Maentwrog Dam

1. Around Llyn Trawsfynydd — Snowdonia National Park

2. Maentwrog Dam loop from Gellilydan

3. Maentwrog Dam loop from Gellilydan

Other Popular Places to Check Out

We value your privacy ⛰️

We value your privacy ⛰️