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Nant Gwrtheyrn Quarry Remnants – Yr Eifl Summit loop from Trefor

Routes

Running trails & routes

Nant Gwrtheyrn Quarry Remnants – Yr Eifl Summit loop from Trefor

Hard

runners

Nant Gwrtheyrn Quarry Remnants – Yr Eifl Summit loop from Trefor

01:57

13.0km

840m

Running

Hard run. Very good fitness required. Mostly accessible paths. Some sure footedness required. The starting point of the route is right next to a parking lot.

Last updated: June 12, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Tirwedd Cenedlaethol Llŷn

Waypoints

Start point

Parking

Get Directions

996 m

View of Llŷn Peninsula Coast

Highlight • Viewpoint

4.73 km

Llŷn Heritage Centre

Highlight • Monument

4.80 km

View of Llŷn Peninsula Coast

Highlight • Natural Monument

4.81 km

Nant Gwrtheyrn Café

Highlight • Cafe

4.98 km

Path to the Beach in Tirwedd Cenedlaethol Llŷn

Highlight • Viewpoint

5.25 km

Nant Gwrtheyrn Quarry Remnants

Highlight (Segment) • Viewpoint

The mine here opened in 1861 and the area was extensively quarried until the Second World War. There are plenty of remnants of this industrial past embedded into the landscape, …

Tip by

8.61 km

Yr Eifl Miners' Memorial Stones

Highlight • Monument

These grand stones at the Yr Eifl car park are a memorial to the miners who quarried here in the 19th century. This area has a huge industrial history and …

Tip by

10.3 km

Yr Eifl Summit

Highlight • Natural Monument

It’s a fact that proximity to the sea makes a peak feel higher. Yr Eifl has its ankles in Caernarfon Bay, and from its top Tremadog Bay on the other …

Tip by

13.0 km

End point

Parking

Way Types & Surfaces

Way Types

5.95 km

2.43 km

1.34 km

1.27 km

1.23 km

785 m

Surfaces

6.45 km

3.49 km

1.20 km

431 m

397 m

Elevation

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

Highest point (540 m)

Lowest point (20 m)

Weather

Tuesday 14 July

29°C

16°C

0 %

Additional weather tips

Max wind speed: 19.0 km/h

to get more detailed weather forecasts along your route

Comments

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Nant Gwrtheyrn Quarry Remnants – Yr Eifl Summit loop from Trefor

View of Llŷn Peninsula Coast

Llŷn Heritage Centre

View of Llŷn Peninsula Coast

Nant Gwrtheyrn Café

Path to the Beach in Tirwedd Cenedlaethol Llŷn

Nant Gwrtheyrn Quarry Remnants

Yr Eifl Miners' Memorial Stones

Yr Eifl Summit

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