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Hatterrall Hill
Hatterrall Hill ( cy, Mynydd Y Gader) is a rounded peak in the Black Mountains which sits on the Wales-England border, partly in Monmouthshire, Wales and partly in Herefordshire, England. Its summit at 531m is the high point of a peaty plateau which falls away steeply on all sides. Broad ridges run to the north, the southeast and southwest. To the north the ridge (known as Hatterrall Ridge) dips to a col at around 485m elevation before rising gradually over several kilometres towards Crib y Garth / Black Hill and Hay Bluff. The ridge to the southwest ends abruptly at the sheer cliff known as the Darren below which is a considerable landslipped area extending south to the hamlet of Cwmyoy with its mis-shapen church. The Welsh part of the hill falls within the Brecon Beacons National Park. Access The upper parts of Hatterrall Hill are all designated as open country and so are freely accessible to walkers. Several public footpaths and other public rights of way give access on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hillwalking
Walking is one of the most popular outdoor recreational activities in the United Kingdom, and within England and Wales there is a comprehensive network of rights of way that permits access to the countryside. Furthermore, access to much uncultivated and unenclosed land has opened up since the enactment of the Countryside and Rights of Way Act 2000. In Scotland the ancient tradition of universal access to land was formally codified under the Land Reform (Scotland) Act 2003. In Northern Ireland, however, there are few rights of way, or other access to land. Walking is used in the United Kingdom to describe a range of activity, from a walk in the park to trekking in the Alps. The word "hiking" is used in the UK, but less often than walking; the word rambling (akin to ''roam'') is also used, and the main organisation that supports walking is called The Ramblers. Walking in mountainous areas in the UK is called hillwalking, or in Northern England, including the Lake District and York ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountains And Hills Of Monmouthshire
A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limited summit area, and is usually higher than a hill, typically rising at least 300 metres (1,000 feet) above the surrounding land. A few mountains are isolated summits, but most occur in mountain ranges. Mountains are formed through tectonic forces, erosion, or volcanism, which act on time scales of up to tens of millions of years. Once mountain building ceases, mountains are slowly leveled through the action of weathering, through slumping and other forms of mass wasting, as well as through erosion by rivers and glaciers. High elevations on mountains produce colder climates than at sea level at similar latitude. These colder climates strongly affect the ecosystems of mountains: different elevations have different plants and animals. Because of the less hospitable terrain and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ice Age
An ice age is a long period of reduction in the temperature of Earth's surface and atmosphere, resulting in the presence or expansion of continental and polar ice sheets and alpine glaciers. Earth's climate alternates between ice ages and greenhouse periods, during which there are no glaciers on the planet. Earth is currently in the Quaternary glaciation. Individual pulses of cold climate within an ice age are termed ''glacial periods'' (or, alternatively, ''glacials, glaciations, glacial stages, stadials, stades'', or colloquially, ''ice ages''), and intermittent warm periods within an ice age are called '' interglacials'' or ''interstadials''. In glaciology, ''ice age'' implies the presence of extensive ice sheets in both northern and southern hemispheres. By this definition, Earth is currently in an interglacial period—the Holocene. The amount of anthropogenic greenhouse gases emitted into Earth's oceans and atmosphere is predicted to prevent the next glacial period for th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glacier
A glacier (; ) is a persistent body of dense ice that is constantly moving under its own weight. A glacier forms where the accumulation of snow exceeds its Ablation#Glaciology, ablation over many years, often Century, centuries. It acquires distinguishing features, such as Crevasse, crevasses and Serac, seracs, as it slowly flows and deforms under stresses induced by its weight. As it moves, it abrades rock and debris from its substrate to create landforms such as cirques, moraines, or fjords. Although a glacier may flow into a body of water, it forms only on land and is distinct from the much thinner sea ice and lake ice that form on the surface of bodies of water. On Earth, 99% of glacial ice is contained within vast ice sheets (also known as "continental glaciers") in the polar regions, but glaciers may be found in mountain ranges on every continent other than the Australian mainland, including Oceania's high-latitude oceanic island countries such as New Zealand. Between lati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Devonian
The Devonian ( ) is a geologic period and system of the Paleozoic era, spanning 60.3 million years from the end of the Silurian, million years ago (Mya), to the beginning of the Carboniferous, Mya. It is named after Devon, England, where rocks from this period were first studied. The first significant adaptive radiation of life on dry land occurred during the Devonian. Free-sporing vascular plants began to spread across dry land, forming extensive forests which covered the continents. By the middle of the Devonian, several groups of plants had evolved leaves and true roots, and by the end of the period the first seed-bearing plants appeared. The arthropod groups of myriapods, arachnids and hexapods also became well-established early in this period, after starting their expansion to land at least from the Ordovician period. Fish reached substantial diversity during this time, leading the Devonian to often be dubbed the Age of Fishes. The placoderms began dominating ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Old Red Sandstone
The Old Red Sandstone is an assemblage of rocks in the North Atlantic region largely of Devonian age. It extends in the east across Great Britain, Ireland and Norway, and in the west along the northeastern seaboard of North America. It also extends northwards into Greenland and Svalbard. These areas were a part of the ancient continent of Euramerica, Euramerica/Laurussia. In Britain it is a lithostratigraphy, lithostratigraphic unit (a sequence of rock strata) to which Stratigraphy, stratigraphers accord Geological unit#Lithostratigraphic units, supergroup status and which is of considerable importance to early paleontology. For convenience the short version of the term, ORS is often used in literature on the subject. The term was coined to distinguish the sequence from the younger New Red Sandstone which also occurs widely throughout Britain. Sedimentology The Old Red Sandstone describes a suite of sedimentary rocks deposited in a variety of environments during the Devonian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beacons Way
The Beacons Way (Welsh: Ffordd y Bannau) is a waymarked long distance footpath in the Brecon Beacons National Park, Wales. It is a linear route which runs for east to west through the National Park, and passes many of the most important landmarks and mountain peaks in the mountain range. It also includes a few of the towns in the park as well as popular attractions such as Carreg Cennen Castle near Llandeilo at the western end of the path. The route Black Mountains The Beacons Way as originally conceived started in Abergavenny, Monmouthshire, at the eastern end of the National Park and headed northeast to Ysgyryd Fawr. It was later changed so that it started on the B4521 road immediately south of the hill at coordinates though the connection with Abergavenny has since been reinstated, albeit on a slightly different route: it now starts at Abergavenny railway station. Beyond Ysgyryd Fawr the route drops down to Llanfihangel Crucorney, passing The Skirrid Mountain Inn before ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Long Distance Trail
A long-distance trail (or long-distance footpath, track, way, greenway) is a longer recreational trail mainly through rural areas used for hiking, backpacking, cycling, horse riding or cross-country skiing. They exist on all continents except Antarctica. Many trails are marked on maps. Typically, a long-distance route will be at least long, but many run for several hundred miles, or longer. Many routes are waymarked and may cross public or private land and/or follow existing rights of way. Generally, the surface is not specially prepared, and the ground can be rough and uneven in areas, except in places such as converted rail tracks or popular walking routes where stone-pitching and slabs have been laid to prevent erosion. In some places, official trails will have the surface specially prepared to make the going easier. Historically Historically, and still nowadays in countries where most people move on foot or with pack animals, long-distance trails linked far away to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Offa's Dyke Path
Offa's Dyke Path ( cy, Llwybr Clawdd Offa) is a long-distance footpath loosely following the Wales–England border. Officially opened on 10 July 1971, by Lord Hunt, it is one of Britain's National Trails and draws walkers from throughout the world. About of the route either follows, or keeps close company with, the remnants of Offa's Dyke, an earthwork traditionally thought to have been constructed in the late 8th century on the orders of King Offa of Mercia. Walking trail Traveling south to north, starting by the Severn Estuary at Sedbury, near Chepstow, and finishing at Prestatyn on the north coast, the walk will take an average walker roughly 12 days to complete. Roughly following the border in parts, and elsewhere the ancient monument of Offa's Dyke, as well as natural features such as the Hatterrall Ridge, the Dyke Path passes through a variety of landscapes. The route traces the eastern edge of the Black Mountains, traverses Clun Forest, the Eglwyseg moors nort ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monnow
The River Monnow ( cy, Afon Mynwy) marks the England–Wales border for much of its length. After flowing through southwest Herefordshire, England, and eastern Monmouthshire, Wales, its confluence with the River Wye is approximately south of Monmouth. The Monnow rises near Craswall on Cefn Hill just below the high Black Mountains, Wales. It flows southwards, gaining the waters of its tributaries the Escley Brook and Olchon Brook near Clodock and the waters of the River Honddu, from the Welsh side of the Black Mountains, near Pandy. The river then flows briefly eastwards, to Pontrilas, where it is joined by its largest tributary, the River Dore before again turning southwards. At Monmouth, the Monnow joins into the River Wye with the River Trothy. The unique medieval Monnow Bridge in Monmouth is the only remaining fortified river bridge in Great Britain with its gate tower standing on the bridge. The long-distance Monnow Valley Walk follows the river. Toponymy The River ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Llanthony
Llanthony (, cy, Llanddewi Nant Honddu ) is a village in the community of Crucorney on the northern edge of Monmouthshire, South East Wales, United Kingdom. Location Llanthony is located in the Vale of Ewyas, a deep and long valley with glacial origins within the Black Mountains, Wales, seven miles north of Abergavenny and within the eastern section of the Brecon Beacons National Park. The village is on an unclassified road leading northwards from Llanvihangel Crucorney to Hay-on-Wye. History and amenities Llanthony Priory is situated here. This dates back to about 1100 when a Norman nobleman Walter de Lacy was inspired by an existing chapel to devote himself to solitary prayer and study. He was joined by others and a church was built on the site in 1108. By 1118, a group of about forty monks from England built the priory of Canons Regular, the first in Wales. It was constantly being raided by the Welsh and was soon in decline, and after Owain Glyndŵr's rebellion in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
