Climbs 81
Rocktype Sandstone (hard)
Altitude 210m a.s.l
Faces SW

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Mark Glaister on Deus Ex Machina (6c) at Navigation Quarry © Jon Warner

Crag features

Navigation Quarry is a pleasant climbing venue located on moorland high above the valley. This is one of the older cragging spots developed on the sandstone and consequently some of the routes are not full clip-up sport routes. Bolts have been kept off of the established trad lines, but there are still plenty of excellent fully bolted sport climbs for those up to them. Not all of the established traditional lines are included here and only fully bolted sport pitches are given sport grades.

Access Advice

Seasonal Restrictions

Dates: 1 March to 1 August

Reason: Nesting Birds

BMC have been advised that Barn Owls could be nesting at this crag. If so these birds have special protection under the Wildlife and Countryside Act.  Avoid climbing the routes on the Left Hand Retaining wall "Left Over" to "Half man-Half Machine"  inclusive.


We are also informed that there are birds nesting on the far right of the crag, left of Alco-Troll Buttress, please be mindful of these birds also and keep a healthy distance. (updated 12/04/2021)

Rockfax Digital

Available on Rockfax Digital

Rockfax Digital brings together all the Rockfax climbing information with UKC logbooks and presents it into a user-friendly package for use on Android and iOS devices.


South Wales Sport Climbs

South Wales Sport Climbs covers the area to the south of the Brecon Beacons, spanning the land and sea cliffs from the River Wye on the Welsh border to Pembrokeshire in the west. The area is home to a wealth of sport climbing on a multitude of venues ranging from small inland quarries to extensive limestone sea cliffs.
More Guidebooks:
South Wales Rock (2020)
South Wales Climbing Wiki

Out of print:
There is a wobbly block that contains the third bolt on relaxed ladybird. This bolt could do with being moved as it's highly unlikely to hold a fall.
afshapes - 26/May/15
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Climbs at this crag

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