The south-western corner of the Geopark
The main settlements within the community lie along the Amman and comprise Glanaman and Garnant together with Twynmynydd. Much of the rest of the settlement within Cwmamman is dispersed.
The lie of the land
The community ranges in height from about 75m (SN 657132)* to 480m at Tair Carn Uchaf (SN 693173). Other notable summits include:
- an un-named hill of 341m (SN 662107);
- the trig point of Tair Carn Isaf (459m) (SN 683167);
- Foel Deg-arbedol (385m) (SN 705160);
- Banc Cwmhelen (320m) (SN 683113)*;
- Bancbryn (324m( (SN 686102)*
The community is drained by the westward-flowing Afon Aman / River Amman and its tributaries, the Nant Pedol, ?Cwm Garnant* and Nant Garenig*.
*locations marked with an asterisk are outside the Geopark boundary.
Hard rock
Cwmamman sits over Coal Measures rocks of Carboniferous age. These are principally shales and mudstones which include beds of both sandstone and numerous coal seams.
Archaeology
Notable archaeological sites within the community include a settlement on the slopes of Drysgol and cairns along the ridge between Tair Carn Isaf and Tair Carn Uchaf.
Maps
Geology
Sheet 230 ‘Ammanford’ of the British Geological Survey’s 1:50,000 map series of England and Wales gives full coverage of the Community. Two versions are available – one showing the bedrock (or ‘solid’) geology and the other showing the superficial deposits (or ‘drift’ geology) which overlie the solid rocks.
General
The following Ordnance Survey maps cover the Community:
- Landranger sheet 160 ‘Brecon Beacons’ (1:50,000 scale)
- Explorer sheet OL12 ‘Brecon Beacons National Park/Western area’ (1:25,000 scale)
Public transport
Bus services operate along the A474 road. The nearest railway station is at Ammanford on the Heart of Wales Railway line.
See Traveline Cymru for bus and train services including stops, timetables and route-planning information.