Routes

Planner

Features

Updates

App

Get the App

Lakes

Coedty Reservoir

Lakes

Coedty Reservoir

Highlight • Historical Site

Coedty Reservoir

Name: Coedty Reservoir
Rating: 2

Recommended by 4 hikers

This Highlight is in a protected area

Please check local regulations for: {{link, react}}

Parc Cenedlaethol Eryri

Save

Location: Dolgarrog, Conwy, North Wales, Wales, United Kingdom

Save

See hikes here

Take Me There

Routes here

Best Hikes to Coedty Reservoir

4.2

(5)

hikers

1. Coedty Reservoir – Eigiau Dam Ruins loop from Dolgarrog

13.4km

04:04

390m

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

Navigate

Send to Phone

Save

Moderate

4.0

(6)

hikers

2. Coedty Reservoir – Waterfalls at Afon Ddu Gorge loop from Dolgarrog

5.10km

01:50

280m

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

Navigate

Send to Phone

Save

Easy

4.5

(2)

hikers

3. Eigiau Dam Ruins – Coedty Reservoir loop from Dolgarrog

10.5km

02:52

160m

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

Navigate

Send to Phone

Save

Moderate

Tips

Mike The Mooching Minister.

June 11, 2025

The reservoir was originally built in 1924 to supply water for the hydro-electric power station in Dolgarrog, which in turn powered an aluminium smelting works. This power station is still operational today.
Coedty Reservoir is historically significant due to its involvement in the devastating Dolgarrog Dam Disaster of 1925. The failure of the Llyn Eigiau dam, located upstream, led to a surge of water that also breached the Coedty dam. This resulted in a catastrophic flood that swept through the village of Dolgarrog, causing the loss of 16 lives.
Coedty dam is a "balance tip" dam, meaning water flows from it automatically when it reaches high levels. This excess water flows into a spectacular gorge below, which is used by outdoor pursuit groups. However, gorge walking here can be dangerous due to the sudden releases of water.

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

Details

Informations

Elevation 320 m

Weather

Today

Monday 1 December

11°C

6°C

70 %

If you start your activity now...

Max wind speed: 34.0 km/h

See hikes here

Take Me There

Location: Dolgarrog, Conwy, North Wales, Wales, United Kingdom

Other Popular Places to Check Out

Fairy Falls (Crafnant River Waterfalls)

Tal y Fan Summit

View of the Carneddau Range

Snowdonia Slate Trail

Meini Hirion Standing Stones

Bwlch Eryl Farchog

Creigiau Gleision North Top

Foel Fras Summit

Aber Falls

Reid ar Ras Descent – Gwydir Mawr & Bach Trails

Llyn Mymbyr

North Wales Coast Path

Coedty Reservoir

1. Coedty Reservoir – Eigiau Dam Ruins loop from Dolgarrog

2. Coedty Reservoir – Waterfalls at Afon Ddu Gorge loop from Dolgarrog

3. Eigiau Dam Ruins – Coedty Reservoir loop from Dolgarrog

Other Popular Places to Check Out

We value your privacy ⛰️

We value your privacy ⛰️