Llwyn-onn
Llwyn-onn is a Village in the county of Merthyr Tydfil (Merthyr Tudful).
Llwyn-onn postcode: CF48 2HT
There are great places to visit near Llwyn-onn.
Llwyn-onn History
There are some historic monuments around Llwyn-onn:
- Gadlys Ironworks (Remains of Blast Furnace)
- Round Cairn and Ring Cairn South of Twyn-y-Glog
- Mynydd y Garn Lluest West
- Y Gyrn hut platforms
- Cwm Criban Prehistoric Settlement
- Abercynafon Neolithic Site
- Rhondda Fach Cairn
- Mynydd y Garn Lluest East
- Enclosure East of Nant Cwm Moel
- Nant-Maden Round Cairn
- Wernlas hut circle
- Remains of Gamlyn Railway Viaduct
- Tai Mawr Leat for Cyfarthfa Iron Works
- Cefn Sychbant, round cairns to the S of
- Cwm Cwareli Longhouse and Long Hut
- Merthyr Common Round Cairns
- Cwm Pit and head of railway
- Nant y Gaseg long hut
- Merthyr Tramroad: Morlais Castle section
- Deserted Iron Mining Village, Ffos-y-fran
- Cefn Cil-sanws, cairn on SW side of
- Ring Cairn and Round Cairn on Southern Side of Mynydd-y-Glog
- Two Round Cairns at Onllwyn
- Twyn Bryn Glas round cairn
- Ton Teg Hut Settlement
- Cefn Esgair-Carnau round cairn (N)
- Lower Neuadd Standing Stone
- Mynydd y Garn Enclosure
- Cwm Glo pit and ironstone tip
- Onllwyn Round Cairn
- Round Cairn North of Mynydd-y-Glog
- Darren Fawr Round Cairns
- Pontsticill platform cairn
- Rhyd Uchaf Hillfort
- Twyn yr Odynau round cairn
- Cefn Cil-sanws defended enclosure
- Gwersyll
- Morlais Hill ring cairn
- Tramroad East of Robert's Town Bridge, Aberdare
- Cefn Esgair-Carnau round cairn and long hut
- Cyfarthfa balance pond and leat
- Remains of Blast Furnaces, Cyfarthfa Ironworks
- Cefn Esgair-carnau Burnt Mound
- Cefn Cil-Sanws ring cairn
- Carn Castell y Meibion ring cairn
- Morlais Castle
- Glog Las round cairn
- Cwm Glo Chapel
- Llwyn-on Farmstead
- Cae Burdydd Castle
- Four Round Cairns on Mynydd-y-Glog
- Cwm Cadlan Settlement and Field System
- Cyfarthfa Canal Level
- Nant Crew Inscribed Stone (now in Cefn Coed Church)
- Mynydd y Garn round cairn
- Cader Fawr Round Cairn
- Cyfarthfa Tramroad Section at Heolgerrig
- Pont y Cafnau Tramroad Bridge
- Garn Pontsticill ring cairn
- Carn Pentyle-Hir & Adjacent Round Cairn
- Two Round Cairns on the Summit of Mynydd-y-Glog
- Gurnos Quarry Tramroad & Leat
- Waun Tincer round cairn
- Ponsticill Inscribed Stone
- Pillow Mound at Bryn y Gwyddel
- Buarth y Caerau Cairn
- Hut Circles & Enclosures on Buarth Maen
- Nant Morlais Hafod
- Storey Arms Anti-invasion Defences
- Cwmdu Air Shaft & Fan
- Cadair Fawr settlement
- Afon Hepste Settlement Enclosure
- Graig-y-Gilfach round cairn and earthwork
- Iron Ore Scours and Patch Workings at Winch Fawr, Merthyr Tydfil
- Iron Canal Bridge from Rhydycar
- Pant-y-Gadair Hut Circle Settlement
- Merthyr Tramroad Tunnel (Trevithick's Tunnel)
- Carn Ddu platform cairn
- Penmoelallt Round Barrows
- Cefn Esgair-Carnau round cairn (S)
- Coetgae'r Gwartheg barrow cemetery
- Pant Sychbant Round Cairn and Earthworks
- Black Pins early ironstone workings
- Ynys Fach Iron Furnaces
- Craig Cerrig-Gleisiad Deserted Rural Settlement
- Abercanaid haystack boiler
- Ring Cairn South of Twyn Blaennant
- Pant Sychbant Medieval Hamlet
- Nant Mawr Round Cairn
- Iron Tram Bridge, Robertstown
- Waun y Gwair Cairn
- Twyn Garreg Wen Cairn
- Gelli-Isaf Tramroad Bridge, Abernant Tramroad
- Cefn Sychbant Round Cairns
- Tarren y Bwlch round cairn
- Wernlas ring cairn and cairnfield
- Garn Las Earthwork
- Cefn Esgair-Carnau Round Cairns
- Cefn Car settlement
- Y Gyrn Hut Platform (S)
- Craig Cerrig-Gleisiad Prehistoric Settlement
- Enclosure on Coedcae'r Ychain
- Pant Sychbant Medieval House
- Y Gaer, Dol-y-Gaer
- Sarn Howell Pond and Watercourses
- Three Round Cairns on the Southern Side of Mynydd-y-Glog
- Site of Hirwaun Ironworks
- Vale of Neath railway cutting and tunnel portal
- Blaen Glyn Round Cairn
