| 词条 | Llyn y Fan Fawr |
| 释义 |
| name = Llyn y Fan Fawr | image = Llyn y Fan Fawr.jpg | caption = | image_bathymetry = | caption_bathymetry = | location = Powys, Wales | coords = {{coord|51|52|52|N|3|42|0|W|type:waterbody_region:GB|display=inline,title}} | type = natural | inflow = | outflow = River Tawe | catchment = | basin_countries = United Kingdom | length = | width = | area = | depth = | max-depth = | volume = | residence_time = | shore = | elevation = 605 m (1815 feet) | islands = | sections = | cities = | frozen = }} Llyn y Fan Fawr (Welsh: 'lake of the big peak') is a natural lake in the county of Powys, Wales. It lies at the foot of Fan Brycheiniog,[1] the highest peak of the Black Mountain (WelshY Mynydd Du) range within the Brecon Beacons National Park. Created as a result of glacial action,[2] it is one of the largest glacial lakes in southern Wales.[3] The lake is roughly rectangular in shape with its long axis oriented roughly north-south.{{cn|date=April 2017}} The surface of Llyn y Fan Fawr lies at about 1815 feet or 605m above sea level.[4][5] Its primary outflow is to the River Tawe.[6] Much of the land around the lake is peaty and thus wet underfoot. References1. ^{{cite book|author1=Andrew Davies|author2=David Whittaker|title=Walking on the Brecon Beacons|url=https://books.google.com/books?id=f5Qo1yy7xFYC&pg=PA191|date=9 September 2010|publisher=Cicerone Press Limited|isbn=978-1-84965-346-6|pages=191–}} 2. ^{{cite book|author=Geological Survey of Great Britain|title=Memoirs. England and Wales: Explanation of Sheet|url=https://books.google.com/books?id=0SEeAQAAMAAJ|year=1932|publisher=H.M. Stationery Office}} 3. ^{{cite book|author=Derek Ratcliffe|title=A Nature Conservation Review: Volume 1: The Selection of Biological Sites of National Importance to Nature Conservation in Britain|url=https://books.google.com/books?id=YPQaFxH-AZYC&pg=PA236|date=26 January 2012|publisher=Cambridge University Press|isbn=978-0-521-20329-6|pages=236–}} 4. ^{{cite book|author1=Hans Luther|author2=Julian Rzóska|title=Project Aqua: A Source Book of Inland Waters Proposed for Conservation|url=https://books.google.com/books?id=XsUcAQAAIAAJ|year=1971|publisher=International Biological Programme|isbn=978-0-632-08730-3}} 5. ^Ordnance Survey Explorer map OL12 'Brecon Beacons National Park: western area' 6. ^{{cite book|title=Bye-gones: Relating to Wales and the Border Counties|url=https://books.google.com/books?id=md4GAAAAYAAJ&pg=PA504|year=1894|publisher=Printed at the Caxton works.|pages=504–}} External links
3 : Black Mountain, Wales|Lakes of Powys|Lakes of the Brecon Beacons National Park |
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