Routes

Planner

Features

Updates

App

Get the App

Lake Vyrnwy Dam – Lake Vyrnwy Straining Tower loop from Llanarmon yn Iâl

Lake Vyrnwy Dam – Lake Vyrnwy Straining Tower loop from Llanarmon yn Iâl

Hard

riders

Lake Vyrnwy Dam – Lake Vyrnwy Straining Tower loop from Llanarmon yn Iâl

06:52

123km

2,170m

Road cycling

Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride. The starting point of the route is accessible with public transport.

Last updated: July 10, 2026

Tips

The surface for a segment of your route may not be suitable

Some segments of your route comprise a surface that may not be suitable for your chosen sport.

After 28.6 km for 404 m

Waypoints

Start point

Bus stop

Get Directions

9.94 km

Horseshoe Pass

Mountain Pass

9.95 km

Horseshoe Pass (Bwlch yr Oernant) Climb from Llangollen

Highlight (Segment) • Mountain Pass

At just under 6 km long with an average gradient of 5% and fantastic scenery this climb is really good and rewarding challenge for any cyclist. The first 1.5 km …

Tip by

28.8 km

Coed Erw-gerrig

Forest

59.4 km

Lake Vyrnwy Dam

Highlight • Monument

This is brilliant peice of architecture thats still in use today, you can feel the sheer power of the flow of water down the dam one side, and the peace and tranquility of the lake the other.

Tip by

61.2 km

Lake Vyrnwy (Welsh: Llyn Efyrnwy, pronounced [ɛˈvərnʊɨ] or Llyn Llanwddyn) is a reservoir in Powys, Wales, built in the 1880s for Liverpool Corporation Waterworks to supply Liverpool with fresh water. …

Translated by Google •

Tip by

68.0 km

Hirnant Pass Climb from Rhiwargor

Highlight (Segment) • Viewpoint

There is more climbing on this side of the Hirnant climb starting from Lake Vyrnwy. The 4km climb can be divided into four sections - the first 1km steeply beyond …

Translated by Google •

Tip by

72.1 km

Hirnant Pass Climb (Rhosygwaliau Side)

Highlight (Segment) • Viewpoint

Just under 2km in length, this climb averages 8% but towards the top ratchets up to well over 10% to maximise the suffering

Tip by

74.1 km

View of the Rolling Hills in Parc Cenedlaethol Eryri

Highlight • Climb

Absolutely fantastic views road surface is great climbs take care over cattle grid.
A wonderful experience.

Tip by

75.6 km

Coed y Glyn

Forest

80.6 km

Hirnant Riverside at Parc Cenedlaethol Eryri

Highlight • Forest

Absolutely stunning valley to ride up.

Tip by

105 km

River Dee and Stone Bridge

Highlight • River

The River Dee was the traditional boundary of the Kingdom of Gwynedd in Wales for centuries, possibly since its founding in the 5th century. It was recorded in the 13th …

Tip by

123 km

End point

Bus stop

Way Types & Surfaces

Way Types

107 km

14.7 km

611 m

450 m

413 m

Surfaces

92.8 km

29.5 km

450 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (500 m)

Lowest point (90 m)

Weather

Saturday 25 July

19°C

14°C

65 %

Additional weather tips

Max wind speed: 30.0 km/h

to get more detailed weather forecasts along your route

Comments

January 18, 2022,Such a good ride I didn't even mind being covered head to toe in shit 🤣🐑💩

Absolute scenes out there today! Such a brilliant ride, so peaceful and quiet, barely saw a soul all day. I haven't ridden here for quite a while and I forgot quite how awesome it is, bring your climbing legs mind, and if you've lost them then bring an e-bike! 😅

Want to know more?

Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

Navigate

Send to Phone

Save

Edit route

Download GPX

Move start point

Embed on a website

Report an Issue

Report restricted access

Nearby routes

Easy

4.4

553

Burton Marsh Greenway

01:03h

26.0km

60m

Moderate

4.8

100

Chester climbs and castles loop

02:52h

61.3km

450m

Hard

4.7

The climbs & passes of the Clwydian Mountain Range loop

03:46h

58.7km

1,160m

Moderate

5.0

Wrexham Tour of Britain 2023 stage

04:28h

106km

710m

Hard

4.7

Chester to Bwlch Penbarras loop

04:12h

78.0km

1,050m

Hard

Llangollen canal, Chirk castle and the Worlds End loop

02:59h

46.2km

970m

Moderate

5.0

Horseshoe Pass from Wrexham loop — Clwydian Range and Dee Valley

02:43h

50.5km

720m

Moderate

Llyn Tegid loop from Corwen — Parc Cenedlaethol Eryri / Snowdonia National Park

02:29h

56.1km

510m

Moderate

A loop of the Llantysilio Mountains and the southern Clwydian Range

03:26h

59.8km

850m

Moderate

River Dee loop from Chester

03:17h

76.4km

470m

Hard

A loop around the Clocaenog Forest from Denbigh Castle to Llyn Brenig

03:17h

64.3km

940m

Hard

A loop of the Berwyn Hills from Llangollen

05:01h

88.8km

1,610m

Lake Vyrnwy Dam – Lake Vyrnwy Straining Tower loop from Llanarmon yn Iâl

Horseshoe Pass (Bwlch yr Oernant) Climb from Llangollen

Lake Vyrnwy Dam

Lake Vyrnwy Straining Tower

Hirnant Pass Climb from Rhiwargor

Hirnant Pass Climb (Rhosygwaliau Side)

View of the Rolling Hills in Parc Cenedlaethol Eryri

Hirnant Riverside at Parc Cenedlaethol Eryri

River Dee and Stone Bridge

Nearby routes

Sign up or log in to keep exploring this route

We value your privacy ⛰️

We value your privacy ⛰️