Bishops and Clerks

For the Australian islets, see Bishop and Clerk Islets.

View northwest from Ramsey Island showing some of the islets around Carreg Rhoson

The Bishops and Clerks are a group of rocks and islets situated in St George's Channel 1 to 2 miles west of Ramsey Island, Pembrokeshire, Wales.

Geography

There are four distinct groups of islets. From the north these are:

North Bishop (44 metres, 144 feet)
Carreg Rhoson (44 metres, 144 feet)
Carreg Rhoson E Island (30 metres, 98 feet)
- Maen Rhoson
Daufraich
- Maen Daufraich
- Moelyn
- Cribog
Emsger or South Bishop (37 metres, 121 feet)

In addition, the three small wave-washed rocks of Carreg-trai, Llechau-isaf and Llechau-uchaf sit in the waters between the Bishops and Clerks and Ramsey Island and the Welsh mainland.

Lighthouse

The South Bishop Lighthouse is built upon Emsger or South Bishop. Thirteen or so shipwrecks are recorded in the waters immediately surrounding the islands, notably North Bishop.^[1]

Geology

The two northerly islet groups are formed from gabbro, a hard-wearing rock of igneous origin whilst those of the Daufraich group to their south (and indeed Llechau-isaf) are formed from microtonalite, another intrusive igneous rock. The most southerly, Emsger is formed from rhyolite. All these are of probable lower Palaeozoic origin. Llechau-uchaf is formed from the late Cambrian 'Lingula Flags' whilst Carreg-trai is formed from Ordovician acid tuffs of the Llanrian Volcanic Formation.^[2] The submarine geology between the main groups is formed by sandstones and mudstones of Cambro-Ordovician age, though the bedrock is partly covered by sand and gravel.^[1]

References

1 2 "Pembrokeshire Coast National Park planning document" (PDF).
↑ British Geological Survey 1992 1:50,000 scale provisional geological map sheet 209 (England and Wales) St David's

External links

Photograph

Pembrokeshire

Principal settlements	Cilgerran Fishguard Goodwick Haverfordwest Milford Haven Narberth Newport Neyland Pembroke Pembroke Dock St Davids Templeton Tenby

Towns and villages	Ambleston Amroth Angle Boncath Brawdy Burton Camrose Carew Castlemartin Clydau Clynderwen Cosheston Crymych Cwm Gwaun Dale Dinas Cross East Williamston Eglwyswrw Fishguard Freystrop Haverfordwest Hayscastle Herbrandston Hook Hundleton Jeffreyston Johnston Kilgetty/Begelly Lampeter Velfrey Lamphey Letterston Llanddewi Velfrey Llandissilio West Llangwm Llanrhian Llanstadwell Llawhaden Lydstep Haven Maenclochog Manorbier Manordeifi Marloes and St. Brides Martletwy Mathry Merlin's Bridge Milford Haven Mynachlog-ddu Narberth Nevern New Moat Neyland Nolton and Roch Pembroke Pembroke Dock Penally Porthgain Puncheston Rosemarket Rudbaxton Saundersfoot Scleddau Slebech Solva Spittal St Davids and the Cathedral Close St. Dogmaels St. Florence St. Ishmael's St Mary Out Liberty Stackpole Stepaside Strumble Head Tenby The Havens Tiers Cross Trecwn Trefasser Uzmaston and Boulston Walwyn's Castle Wisemans Bridge Wiston Wolfscastle

Castles	Carew Castle Cilgerran Castle Cresswell Castle Dale Castle Haverfordwest Castle Llawhaden Castle Manorbier Castle Narberth Castle Pembroke Castle Picton Castle Wiston Castle

Islands and headlands	Bishops and Clerks Caldey Island Cemaes Head Crow Rock Dinas Island Emsger Gateholm Grassholm Llechau-isaf Meini Duon Middleholm Ramsey Island St Catherine's Island Skokholm Skomer St Margaret's Island Strumble Head Trwynmynachdy Ynys Bery Ynys Cantwr Ynys Eilun Ynys Gwelltog

Rivers	Afon Cych River Gwaun Western Cleddau Eastern Cleddau River Cleddau Afon Nyfer Pembroke River Afon Teifi River Syfynwy

Topics	Parliamentary constituencies Places SSSIs Schools Country houses Lord Lieutenants High Sheriffs Museums

Coordinates: 51°52′12″N 5°23′42″W / 51.87°N 5.395°W / 51.87; -5.395

This article is issued from Wikipedia - version of the Sunday, January 31, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.