Black Mountain (SW #95) Bike Climb - PJAMM Cycling

Black Mountain (SW #95)

United Kingdom

All the cycling data and info you'll need to climb Black Mountain (SW #95)

Explore this Climb

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Climb Summary

Cycling Black Mountain - #95 Simon Warren 100 Greatest Cycling Climbs  - top of climb - road, monument, 100 Greatest Cycling Climbs logo 

Near the summit

#95 of Britain’s 100 Greatest Cycling Climbs, Black Mountain begins on the A4069 about 1 kilometer south of Pont Aber, Carmarthenshire County, southern Wales.  The A4069 has a fair amount of traffic and is a narrow 2 lane roadway along this segment.  Our climb is of moderate length by GCC 100 standards at 6 kilometers and has a mild average grade of 5.7%.  There are no terribly challenging sections and the grade rarely exceeds 9%.

The views along the way are generally obstructed by brush/trees for the first half of the climb, but open to rolling hills, grazing sheep and distant views of farmlands for the second half of the climb.

Biking Black Mountain - #95 Simon Warren 100 Greatest Cycling Climbs  - road sign and road 

First part of the climb along A4069 bordered by brush/trees.

Bicycle climb Black Mountain - #95 Simon Warren 100 Greatest Cycling Climbs  - livestock, cows, field, clouds - aerial drone photo 

Open views and grazing sheep second half of climb.


Plaque near top of climb  for motorcyclists killed in freak accident when

startled sheep ran into roadway as he travelled at just 43 kph.


Steepest kilometer begins at 400 meters (7%)

The Black Mountain abandoned quarries give the climb its name. There are several hiking trails at the top of the climb that access Herbert’s Quarry.

Cycling Black Mountain - #95 Simon Warren 100 Greatest Cycling Climbs  - aerial drone photo of quarry 

Long abandoned Herbert’s Quarry at the top of the climb.

“Also known as Herbert’s Quarry, this is a large area of abandoned limestone quarries in a stunning location on Black Mountain. The site has panoramic views over the Fforest Fawr Geopark and the west part of the Brecon Beacons National Park.
The Black Mountain Quarries are a time capsule of a very important aspect of Welsh industrial heritage. There are physical traces of lime exploitation spanning many hundreds of years with quarry workings, lime kilns, and spoil heaps from small scale local exploitation of the 1700s to large industrial use in the 20th century. As you explore the site, you are walking in the footsteps of many thousands of people whose hard work, sweat and drudgery shaped this landscape and left a rich industrial legacy.”

Black Mountain climb is in the eastern section of Brecon Beacons National Park, Wales, established 1957 and achieved the status of
International Dark Sky Reserve in February 2013. While much of the park is bare grassy pastures with Welsh mountain ponies and sheep, it is also known for its many remote reservoirs, waterfalls and caves such as the 90 foot Henrhyd Waterfall and the Ogof Ffynnon Ddu Cave.  
Wikipedia - Brecon Beacons National Park