Tag Archives: Cwm Dulais

Rocky Details of the Landscape

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My walks up Cefn Drum, Cwm Dulais and Graig Fawr are some of my favourite local routes. The opportunity to find out from an expert about the geology of the area was not one to be missed. The landscape is beautiful at any time of year and just now it is particularly green.

Looking at the landscape as we walked up the side of Cefn Drum the colour of the non native rhododendrons was passed but similar colours were showing themselves in the foxgloves.

Cwm Dulais landscape

Cwm Dulais landscape

Our next stop on the walk allowed Geraint to show us more plant fossils and also a visitor to the area in the form of a rock that had been brought here from the Gower Peninsula not by truck but by glacier.

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My Walk this Week – The Geology of Cwm Dulais

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My walk this week was organised by our local library with Geraint Owen, a geographer from Swansea University (UWTSD). Geraint gave an excellent talk at the library a few months ago and so when the opportunity came up to join him on his geology walk route for Cwm Dulais I didn’t hesitate to sign up.

The image below may not seem to have much to do with geology but there is a relationship here. I first have to admit to loving bog cotton as a plant and so when we came across it there was no way I was going to pass it by. However, in geological terms the plant is there because as its name suggests, the ground was boggy. Now wind back time several million years and consider the fact that bogs make peat which when compressed over millennia turn into coal . . . and that brings me to the starting point of our walk – the old Cefn Drum and Graig Merthyr colliery location in Cwm Dulais.

Bog cotton

Bog cotton

The start of my walk was a solitary one as I walked up the valley to meet the rest of the group near the site of the old colliery. The waste heap is no longer there now but is spread across the hillside of Cefn Drum. We scrambled about on this looking for evidence of ancient plant life in the stones and coal that now makes up a casual track used by motorbikes. It was higher up the hillside that we came a upon the bog cotton.

If viewing this in an email, please click the post title to see other photos in this post, thank you.

My starting point
Meeting the group
Looking for evidence of plants
Bog cotton
Bog cotton 2
Bog cotton detail

Closing Weather

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My optimism for a bright day at the start of this hill walk up Graig Fawr meant I was taken by surprise when, as I arrived on the upper reaches of the hill, snow started falling behind me from the west.

I turned to see the clouds fast approaching and the whole atmosphere of the landscape changed. Fortunately it didn’t last long, but even so, I was reminded that this is what you have to watch out for in a landscape like this.

The Mawr uplands may not be very high or large in scale in comparison to many other places, but that does not mean you can’t get disorientated. However well I think I know the place, I would always treat it with respect. It was on a bright sunny day in Summer when I misread the landmarks up here. This didn’t cause a problem but it did mean that we took a different route to that intended.

My nearest landmark, in the form of the triangulation point, was in view through the snow and as it turned out, I only had to wait ten minutes for the sun to came out again and allow me to view the falling rain on the far side of Cwm Dulais.

snow cloud

Hazy Walk and Reviewing the Week 40

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Looking at the photos in this week’s morning walk posts, I note the haze as well as the morning sunlight. Yet again in this shot, you cannot see anything of the Gower Peninsula in the background. Taken at the end of the first week of September, perhaps we were due for some rain at the time, just to clear the air a bit.

Loughor estuary landscape