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Road cycling routes

Carmarthenshire

Black Mountain Viewpoint – Herbert's Quarry loop from Garnant

Road cycling routes

Carmarthenshire

Black Mountain Viewpoint – Herbert's Quarry loop from Garnant

Moderate

23

riders

Black Mountain Viewpoint – Herbert's Quarry loop from Garnant

02:27

44.8km

900m

Road cycling

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride. The starting point of the route is accessible with public transport.

Last updated: August 27, 2026

Tips

The surface along some of this route may not be suitable

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

After 35.1 km for 75 m

After 35.7 km for 142 m

Waypoints

A

Start point

Bus stop

1

3.07 km

Black Mountain Climb from Brynaman

Highlight (Segment) • Viewpoint

The Black Mountain Category 3 Climb from Brynaman is a 5.5km climb with a total ascent of 312m, topping out at 495m. The average gradient is 5.8% with the steepest …

Tip by

2

8.49 km

Black Mountain Climb from Pont Aber

Highlight (Segment) • Climb

Although not the classic side of the Black Mountain, this is still a fantastic road to climb that crosses the spine of the mountain and immerses you in some of …

Tip by

3

22.3 km

View of the River Sawdde at Llangadog Common

Highlight • River

Spend a few moments on the bridge over the River Sawdde river to take in the view. A great bird watching spot, if you are patient or lucky enough you may see Sandpipers, Dipper or Kingfisher here.

Tip by

4

35.1 km

Viewpoint on the Mountain Road, Bannau Brycheiniog National Park

Highlight • Viewpoint

Nestled along one of the finest driving routes in Great Britain, this spot is perfect for a leisurely picnic at the available benches or simply admiring the stunning views.

Keep …

Tip by

5

35.2 km

Black Mountain Viewpoint

Highlight • Viewpoint

Fantastic place with lots to explore!! This small car park is free of charge and often has a ice cream van that’s there most weekends and bank holidays. And I …

Tip by

6

35.8 km

Herbert's Quarry

Highlight • Historical Site

Also referred to as Black Mountain Quarry, Herbert's Quarry ceased operation in the late 1950s and since then its buildings have fallen into ruin. The remains and spoil heaps tell …

Tip by

B

44.8 km

End point

Bus stop

Way Types & Surfaces

Way Types

38.3 km

5.19 km

562 m

385 m

285 m

< 100 m

Surfaces

43.7 km

695 m

201 m

179 m

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Elevation

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

Highest point (490 m)

Lowest point (50 m)

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Weather

Powered by Foreca

Sunday 11 October

17°C

12°C

22 %

Additional weather tips

Max wind speed: 20.0 km/h

to get more detailed weather forecasts along your route

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