Craig Cerrig-gleisiad is a curved north facing escarpment to the west of Pen y Fan and Corn Du, across the other side of the A470.
From the road side it looks to be some quite impressive curved crags, and I went to have a look at them on this evening, at the end of a very nice day weatherwise.
It is quite a steep climb up the end of the ridge, but once up on the path above the crags, you don`t really get any sense that you are high above the crags.
This picture was taken after walking around the horseshoe, looking back over the crags of Craig Cerrig-gleisiad to Pen y Fan and Corn Du at the back.
From the far end of the horseshoe you can head down and across and up to the summit Fan Frynych - this has a trig point on it, and like the trig point on Fan Fawr, it has been decorated with Welsh dragons.
Here is the trig point, and over to the right of the picture is Pen y Fan and Corn Du.
Behind the trig point is the eastern Black Mountains.
Looking away in the opposite direction, and here is the trig point again, and in the background is a summit which I think is in the western Black Mountains - it looks to be quite a high summit, but I can`t work out which summit it is.
It might be Fan Brycheiniog at 802 metres high - I can`t see what else it could be - here is a closer view of it - looking at the map, it looks like it could be quite an interesting walk up to it, there are a lot of crags along the east side - at least the map shows crags, although they aren`t particularily obvious in the picture.
Looking at the map, it appears that the western Black Mountains is a surprising large area of mountains, much of it well away from any roads. The mountains may not be the highest, but they look as if they could be quite rugged, and you could spend a lot of time getting to them.
Back to Fan Frynych, and looking to the south across to Fan Fawr, where the other Welsh dragons live.
When I set out it was well in to the evening, and I was hoping I might get a good view of the sunset from up on Craig Cerrig-gleisiad, however it was way to early, and the sun was showing no sign of setting.
So I headed back down to the road - running the last bit down through the trees to beat the midges - and then drove up the road, and headed up the Beacons Way.
I got maybe about halfway up to Corn Du, and finally got high enough to get a view over the neighbouring hills, and watched the last few minutes of the sun as it set below the horizon somewhere away up to the northwest.