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