Mountain Ash quarry is in the shape of a bowl and provides a welcome retreat from any harsh weather. There is a good mixture of climbing styles and grades ranging from short and desperate fingery testpieces through to some long and slabbier walls. There are enough routes here to pack a lot into a short session.
If on foot, take the train to Mountain Ash, and leave the station onto the first road encountered. Turn left, and follow the road out of the town for about 400m to a track crossing through an old works. Go through this and continue over a footbridge. From the end of this footbridge cross the road and walk straight up to the main road (A4059). Turn right and proceed for about 400m to the last few houses in Mountain Ash. Turn left onto the estate and immediately left again, then take the first right to an obvious track leading uphill past some garages. Where the track veers off right, scramble up the bank to a path and follow this rightwards to enter the quarry.
If coming by car, simply follow the A4059, and take the first turning right after the first few houses to reach the same spot. If you pass a garage on the left you have gone too far. It is possible to park on the estate.
Found by the A4059 Abercynon-Aberdare road: from Abercynon a row of houses on the R starts Mountain Ash. Take the first R turn, and park in the first row of terraces. Be considerate how and where you park.
Take the path into the woods: the quarry is on it.
If you are using SAT NAV try postcode: CF45 4HH. the main street you can park on is Mary Street. Park near house numbers 1 - 20. Track up to the crag should be visible.