What is recorded here
Pwll y Tarw on Ynys Môn (Isle of Anglesey) features coastal rocks primarily composed of Silurian greywacke and mudstone, formed around 440–420 million years ago during sedimentary deposition in a deep marine environment. These rocks are part of the extensive volcanic and sedimentary sequences of the Welsh Caledonides, notable for their role in understanding ancient geological processes in the region.
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Places near here
Traeth DynionBay · 513 yd
Ffos y DefaidBay · 599 yd
St Winifred's Roman Catholic Church, Amlwch; Our Lady Star of The SeaChurch · 971 yd
Amlwch, CemeteryCemetery · 1078 yd,_Amlwch_-_geograph.org.uk_-_2242309.jpg?width=1280)
Bethesda Chapel (Welsh Calvinistic Methodist;Capel Mawr), AmlwchChapel · 1254 yd
Dinorben Arms Hotel, Queen St.Building; Building; Building · 1424 yd
East MouseIslet · 1642 yd
Mona Windmill;Melin-y-Borth, AmlwchWindmill · 1.1 mi
Graig WenMountain / peak · 2.1 mi
Parys Mountain ViewViewpoint · 2.2 mi
Penysarn War MemorialMemorial · 2.5 mi
Dinas GynforMountain / peak · 2.7 miOther information
Photo: Eric Jones · CC BY-SA 2.0