Allt Llwyd and Wig Bach formations, Nant Ffrancon Subgroup (which includes Llanengan and St Tudwal's formations), Cwm Eigiau, Allt Fawr Rhyolitic Tuff, Dwyfach and Nod Glas formations
Overlies
Mawddach Group, Rhobell Volcanic Group
Thickness
variable, more than 2 km
Lithology
Primary
mudstones, siltstones
Other
sandstones, tuffs, oolitic ironstones
Location
Region
northwest Wales
Country
Wales
Type section
Named for
Ogwen Valley
The Ogwen Group is an Ordovician lithostratigraphic group (a sequence of rock strata) in Gwynedd, north-west Wales. The name is derived from Ogwen Valley, a locality in Snowdonia where it outcrops.
The OgwenGroup is an Ordovician lithostratigraphic group (a sequence of rock strata) in Gwynedd, north-west Wales. The name is derived from Ogwen Valley...
Dyffryn Ogwen or Ogwen Valley, its valley Ogwen Cottage, an outdoor education centre by Llyn OgwenOgwenGroup, an Ordovician lithostratigraphic group in Gwynedd...
Ogwen Cottage Outdoor Pursuits Centre is situated beside Llyn Ogwen, in Gwynedd, Wales. It is owned by the National Trust, who bought the property at...
Afon Ogwen (Welsh for 'River Ogwen'; Welsh: [ˈɔɡʊɛn]) is a river in north-west Wales draining from some of the greatest peaks in Snowdonia before discharging...
pronunciation: [ˈtrəvan]) is a mountain in the Ogwen Valley, Snowdonia, Wales. It forms part of the Glyderau group, and is one of the most recognisable peaks...
Formation (also known as the Ceiswyn Beds) is an Ordovician lithostratigraphic group (a sequence of rock strata) in Mid Wales. The rock of the formation is made...
Limestone Group: Blackrock Limestone Subgroup Clydach Valley Subgroup OgwenGroup Nant Ffrancon Subgroup Searchable database of British rock names on BGS...
ridge is developed in rocks of the Ceiswyn Formation assigned to the OgwenGroup and dating from around 457 to 454 million years ago. A near vertical...
requiring great technical expertise. The mountains can be approached from Llyn Ogwen to the north, where there is a car park, or from Nant Peris in the Llanberis...
programming to the Welsh channel). Dubbing was done by actors including John Ogwen and Jennifer Vaughan. A series of special short episodes focusing on safety...
Dyffryn Ogwen ("Ogwen Valley School") is a bilingual secondary school for pupils aged 11 to 19 years. It is situated in Bethesda in the Ogwen valley in...
Loud (and Crunchy) Return". The New York Times. Retrieved March 23, 2024. "Ogweñ•yó'da' déñ'se' Hanadagá•yas: The Cicada and George Washington". Onondaga...
the original on 30 November 2020. Retrieved 1 June 2018. Dehowähda•dih. "Ogweñ•yó'da' déñ'se' Hanadagá•yas: The Cicada and George Washington". Onondaga...
(The Voice of Ardudwy) – Ardudwy, Gwynedd Llais Ogwan (The Voice of Ogwen) – Ogwen valley, Bethesda, Gwynedd Llanw Llŷn (The Flow of Llŷn (postcode area))...
mountain rescue groups in: North East Wales Search and Rescue (NEWSAR) - 6 teams: Aberdyfi, Aberglaslyn, Llanberis, North East, Ogwen Valley and South...
Loud (and Crunchy) Return". The New York Times. Retrieved April 2, 2024. "Ogweñ•yó'da' déñ'se' Hanadagá•yas: The Cicada and George Washington". Onondaga...
descended from Cunedda Wledig and the end of independence for Wales. Llyn Ogwen was reputed to be the place from which Sir Bedivere failed to draw King...
Keystone Species and Trophic Cascades – HHMI (2016)". Retrieved 6 June 2017. Ogwen, Lesley Evans (24 April 2024). "Ecologists Struggle to Get a Grip on 'Keystone...
father's love of writing and was a poet. Rhys was educated at Ysgol Dyffryn Ogwen, Bethesda, Gwynedd, North Wales and was awarded a degree in art at Manchester...
of these is the Conwy on the park's eastern margin which along with the Ogwen drains into Conwy Bay. Further west the Seiont and Gwyrfai empty into the...
business and has hired the assassins Orcini (William Gaunt) and Bostock (John Ogwen) to kill him. The TARDIS lands on Necros, the location of the funeral home...
Graham Lee chaired the family-owned LH Group, with its main focus on railway engineering services. After LH Group acquired what remained of the Hunslet...
the independent Birmingham Museums Trust in 2012. The council sold its Ogwen Cottage Outdoor Pursuits Centre, by auction, in October 2014. In 2010, Birmingham...
navigational skills. The idea was the brainchild of Ron James, the warden of Ogwen Cottage Outdoor Pursuits Centre, along with Dr Ieuan Jones, who invited...
lakes Dozmary Pool and The Loe in Cornwall, the lakes Llyn Llydaw and Llyn Ogwen in Snowdonia, River Brue's area of Pomparles Bridge in Somerset, and the...
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