Geological Walk from Porth yr Ogof to Sgwd Clungwyn, Ystradfellte, Powys
This is some additional information and pictures to support the geology walk from Porth yr Ogof to Sgwd Clungwyn, Ystradfellte, Powys. Take a look at the descriptions under each picture to see more information
The Localities mentioned on this post relate to the map which is included in the leaflet PDF and is repeated here to make this page easier to read. For more information and descriptions of all the localities and the start point, parking etc. please see the leaflet
To download and print this walk, please open / download the PDF version here





A useful addition to your walk is the BGS Geology Viewer which is a free smartphone app to view geological maps of Britain wherever you go https://www.bgs.ac.uk/technologies/apps/igeology-app/
We hope you enjoyed this short tour from Porth yr Ogof to Sgwd Clungwyn, Ystradfellte. If you’d like to learn more about our local geology, take a look at other pages on the South Wales Geologists’ Association website: www.swga.org.uk
The Challenges of vertebrate flight
If you missed our lecture by Colin Palmer you can watch it here: https://youtu.be/JYBxiFck7eU
Opinions expressed by authors and services offered by advertisers are not specifically endorsed by the South Wales Geologists' Association
Winter 2022-2023 program
Saturday 7th January 2023: (Cardiff or Zoom)
Holiday Geology
Saturday 21st January: (Trallwn Community Centre, Swansea and Zoom)
Peter Kokelaar
Landscape evolution in southwest Wales: revelations of a dynamic Earth
Saturday 18th February: (Zoom Only)
Colin Palmer (IOW) – "The engineering of pterosaur flight" (provisional title)
Saturday 18th March: (Cardiff University and Zoom)
AGM and Peter Sheldon (Open University), "Exceptional fossils – the surprising, the significant and the strange"
You can view or download our newsletter here: http://swga.org.uk/wp-content/uploads/2023/02/SWGA-NewsletterDec2022.pdf
Tectonic Evolution of the Hymalaya
If you missed our lecture by Mike Searle you can watch it here: https://youtu.be/fSWyAWRZpUc
Quaternary Glaciations in the Mediterranean Mountains
If you missed our lecture by Philip Hughes you can watch it here: https://youtu.be/n_QCQhM2DEA
Opinions expressed by authors and services offered by advertisers are not specifically endorsed by the South Wales Geologists' Association
William Smith in South Wales
If you missed our lecture by Duncan Hawley you can see it here: https://youtu.be/t9D3k9bZWMc
Opinions expressed by authors and services offered by advertisers are not specifically endorsed by the South Wales Geologists' Association
Updated Winter 2022-23 Programme
Oct 6 (Geodiversity Day) - Duncan Hawley (HOGG),
"William Smith in South Wales" [Zoom (evening talk)]
Oct 29 - Professor Philip Hughes (University of Manchester),
"Quaternary glaciation in the Mediterranean mountains - from Morocco to Montenegro" [Cardiff]
Nov 19 - Ewan Thomas (Geotechnology Ltd.),
"The work of an engineering geologist in South Wales" [Swansea]
Dec 10 - Professor Mike Searle, (University of Oxford)
"Tectonics and mountain building in the Himalaya" (provisional title) [Zoom]
Jan 7 - Holiday Geology [Cardiff]
Jan 21 - Peter Kokelaar,
"Landscape evolution of southwest Wales: revelations of a dynamic Earth" [Swansea]
Feb 18 - Colin Palmer (IOW),
"Engineering research into pterosaur flight" (provisional title) [Zoom]
March 18 - Peter Sheldon (Open University),
"Exceptional fossils – the surprising, the significant and the strange’ [AGM Cardiff]
Summer 2022 Newsletter
Bivalve reefs and mounds in the middle Liassic (Domerian) of the Central High Atlas Mountains Morroco
If you missed Chris Lees lecture you can watch it here on our YouTube Channel:
Video link https://youtu.be/cZtj1nuK1Dc
Opinions expressed by authors and services offered by advertisers are not specifically endorsed by the South Wales Geologists' Association