Peterstone Gout is a tidal flap controlling the outfall to the sea near

Peterstone Wentlooge Peterstone or Peterstone Wentlooge ( cy, Llanbedr Gwynllŵg) is a small hamlet to the south west of the city of Newport, South Wales. Location Peterstone Wentlooge lies six miles to the west of Newport city centre and 7½ miles east of Cardiff ...

, Newport, south

Wales Wales ( cy, Cymru ) is a Countries of the United Kingdom, country that is part of the United Kingdom. It is bordered by England to the Wales–England border, east, the Irish Sea to the north and west, the Celtic Sea to the south west and the ...

. It is located several miles up the coast from

Cardiff Cardiff (; cy, Caerdydd ) is the capital and largest city of Wales. It forms a principal area, officially known as the City and County of Cardiff ( cy, Dinas a Sir Caerdydd, links=no), and the city is the eleventh-largest in the United Kingd ...

in the estuary of the

River Usk The River Usk (; cy, Afon Wysg) rises on the northern slopes of the Black Mountain (''y Mynydd Du''), Wales, in the westernmost part of the Brecon Beacons National Park. Initially forming the boundary between Carmarthenshire and Powys, it fl ...

.British Walks
/ref> It is the main drainage point from the Wentloog Levels into the sea. The area is monitored by the

Gwent Wildlife Trust Gwent Wildlife Trust ( cy, Ymddiriedolaeth Natur Gwent) (GWT) is a The Wildlife Trusts, wildlife trust covering the area between the lower River Wye, Wye and Rhymney River, Rhymney rivers which forms the Watsonian vice-counties, vice county of Mo ...

. A plaque is located next to the sluice control valves marking the opening of the facility on July 25, 1960 by Clifford Williams, Chairman of the Usk River Board.

References

Geography of Wales Environment of Gwent Newport, Wales {{Wales-geo-stub