world.wikisort.org - United_KingdomPorth Hellick (Cornish: Porth Helyk, meaning Willow Cove) is a tidal inlet on the south coast of St Mary’s, the largest island in the Isles of Scilly.
Human settlement in England
Porth Hellick |
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A snipe at Porth Hellick Pool |
Location within Isles of Scilly |
OS grid reference | SV925105 |
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Unitary authority | |
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Ceremonial county | |
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Region | |
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Country | England |
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Sovereign state | United Kingdom |
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Post town | ISLES OF SCILLY |
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Postcode district | TR21 |
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Dialling code | 01720 |
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Police | Devon and Cornwall |
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Fire | Isles of Scilly |
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Ambulance | South Western |
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UK Parliament | |
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- List of places
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49.9159°N 6.2844°W / 49.9159; -6.2844 |
The bay is delineated to the south by a headland known as the Giant’s Castle, which is an Iron Age cliff fort, and Porth Hellick Down and Porth Hellick Point to the north.[1] At low tide a wide expanse of sand and rocks are exposed and a bar of fine shingle provides a barrier from the sea to form the largest area of (usually) fresh water on St Mary’s. A stream rises in Holy Vale and flows south through Higher Moors to the sea at Porth Hellick. In its half-mile length it falls less than 25 feet and has barely cut a river bed through the marsh;[2] but feeds the pool with fresh water.
The area is an important feeding station for migrating and wintering birds and was designated as the Higher Moors and Porth Hellick Pool (St Mary's) Site of Special Scientific Interest (SSSI) for the ″wide diversity of habitats with several rare and notable plant species″ in 1971.[3]
Natural history
Higher Moors and Porth Hellick Pool SSSI is one of the three main freshwater wetland areas on Scilly. The wetland is fed by ground water and a small steam to form a mosaic of willow and alder scrub, mire and pools. The peat deposits were once a fuel source and are rich in pollen. Along with other paleo-environmental evidence the deposits provide information about the vegetational history of the islands since the Mesolithic. The area is important as a feeding ground for migrating and wintering birds and for summer visitors and waterfowl. Reed Warbler and Sedge Warbler nest in the common reed which grows along the margins of the pools and Coot, Gadwall, Mallard and Moorhen, Teal and Water Rail also breed. The moors were once grazed and the fields have a rich wet grassland flora with Greater Tussock-sedge, Hemlock Water-dropwort, Purple Loosestrife, Royal Fern, Water Mint and Yellow Iris. The acidic boggy areas support Bog Pimpernel, Bog Stitchwort and Marsh St John’s-wort with Lesser Spearwort in the wetter areas.[4]
See also
- Cornwall portal
References
- Ordnance Survey: Landranger map sheet 203 Land's End ISBN 978-0-319-23148-7
- Lousley, J E (1971). The Flora of the Isles of Scilly. Newton Abbot: David & Charles.
- "Higher Moors and Porth Hellick Pool (St Mary's)" (PDF). Natural England. Retrieved 7 January 2012.
- Anon. The Isles of Scilly. English Nature.
External links
Isles of Scilly |
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Inhabited islands |
- St Mary's
- St Agnes (and Gugh)
- Bryher
- Tresco
- St Martin's
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Uninhabited islands | |
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Settlements |
- St Mary's: Hugh Town, Holy Vale, Longstone, Maypole, Normandy, Old Town, Pelistry, Porthloo, Rocky Hill, Telegraph and Trenoweth
- St Martin's: Higher Town, Middle Town and Lower Town
- St Agnes: Middle Town
- Tresco: New Grimsby and Old Grimsby
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Symbols | |
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Topics |
- Environment
- History
- People
- Transport
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Biological Sites of Special Scientific Interest in Cornwall and the Isles of Scilly |
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Summary |
- Summarised data for all sites (biological and geological)
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Cornwall |
- Aire Point to Carrick Du
- Amble Marshes
- Baulk Head to Mullion
- Bedruthan Steps and Park Head
- Boconnoc Park and Woods
- Bodmin Moor, North
- Borlasevath and Retallack Moor
- Boscastle to Widemouth
- Brendonmoor
- Breney Common
- Bude Coast
- Cabilla Manor Wood
- Caerthillian to Kennack
- Carnkief Pond
- Carrick Heaths
- Carricknath Point to Porthbean Beach
- Carrine Common & Penwethers
- Chyenhal Moor
- Cligga Head
- Coombe Mill
- Coverack to Porthoustock
- Crow's Nest
- Crowhill Valley
- Dozmary Pool
- Draynes Wood
- East Lizard Heathlands
- Eglarooze Cliff
- Gerrans Bay to Camels Cove
- Godrevy Head to St Agnes
- Goonhilly Downs
- Goss and Tregoss Moors
- Greenamoor
- Greenscoombe Wood, Luckett
- Grimscott
- Gwithian to Mexico Towans
- Hayle Estuary & Carrack Gladden
- Kelsey Head
- Kennack to Coverack
- Kernick and Ottery Meadows
- Loe Pool
- Loggans Moor
- Lower Bostraze and Leswidden
- Lower Fal & Helford Intertidal
- Lymsworthy Meadows
- Lynher Estuary
- Malpas Estuary
- Marazion Marsh
- Meddon Moor
- Meneage Coastal Section
- Merthen Wood
- Minster Church
- Mullion Cliff to Predannack Cliff
- Nance Wood
- Newlyn Downs
- Ottery Valley
- Park Wood
- Penhale Dunes
- Pentire Peninsula
- Phoenix United Mine
- Plymouth Sound Shores And Cliffs
- Polruan to Polperro
- Polyne Quarry
- Porthgwarra to Pordenack Point
- Rame Head & Whitsand Bay
- Red Moor
- Redlake Meadows & Hoggs Moor
- Retire Common
- River Camel Valley and Tributaries
- Rock Dunes
- Rosemullion
- Rosenannon Bog and Downs
- St Austell Clay Pits
- St John's Lake
- St Nectan's Glen
- Steeple Point to Marsland Mouth
- Swanpool
- Sylvia's Meadow
- Talland Barton
- Tamar–Tavy Estuary
- Tintagel Cliffs
- Treen Cliff
- Tregonetha & Belowda Downs
- Tregonning Hill
- Trehane Barton
- Trelow Downs
- Trevose Head and Constantine Bay
- Upper Fal Estuary and Woods
- Upper Fowey Valley
- Ventongimps Moor
- West Cornwall Bryophytes
- West Lizard
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Isles of Scilly | |
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- Neighbouring areas
- Sites of Special Scientific Interest in Devon
- Sites of Special Scientific Interest in Somerset
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