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Twyn Brynbychan Trig Point – Smooth Tarmac Cycleway loop from Mountain Ash

Routes

Hiking trails & Routes

Twyn Brynbychan Trig Point – Smooth Tarmac Cycleway loop from Mountain Ash

Moderate

5.0

(1)

hikers

Twyn Brynbychan Trig Point – Smooth Tarmac Cycleway loop from Mountain Ash

04:44

17.0km

320m

Hiking

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: May 9, 2026

Waypoints

Start point

Train Station

Get Directions

8.45 km

Twyn Brynbychan Trig Point

Highlight • Natural Monument

We walked miles. Up to the waterfall on Gillies trail, followed the path up onto the rocky and then to the trig point on Twyn Brynbychan, above the cynnon valleys. …

Tip by

14.1 km

Smooth Tarmac Cycleway

Highlight (Segment) • Cycleway

Perfect for your best summer bike

Tip by

17.0 km

End point

Train Station

Way Types & Surfaces

Way Types

14.8 km

1.20 km

1.02 km

< 100 m

Surfaces

11.6 km

3.42 km

1.29 km

587 m

Elevation

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

Highest point (400 m)

Lowest point (100 m)

Weather

Friday 26 June

24°C

15°C

47 %

Additional weather tips

Max wind speed: 21.0 km/h

to get more detailed weather forecasts along your route

Comments

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Twyn Brynbychan Trig Point – Smooth Tarmac Cycleway loop from Mountain Ash

Twyn Brynbychan Trig Point

Smooth Tarmac Cycleway

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