North Yorkshire in the context of River Laver

Lancashire (/ˈlæŋkəʃər/ LANG-kə-shər, /-ʃɪər/ -⁠sheer; abbreviated Lancs) is a ceremonial county in North West England. It is bordered by Cumbria to the north, North Yorkshire and West Yorkshire to the east, Greater Manchester and Merseyside to the south, and the Irish Sea to the west. The largest settlement is the city of Preston.

The county has an area of 3,079 square kilometres (1,189 sq mi) and had a population of 1,601,645 in 2024. Preston and Blackburn are located near the centre, Burnley in the east, the seaside resort of Blackpool on the Irish Sea coast in the west, and the city of Lancaster in the north. For local government purposes the county comprises a non-metropolitan county, with twelve districts, and two unitary authority areas: Blackburn with Darwen and Blackpool. Lancashire County Council and the two unitary councils collaborate through the Lancashire Combined County Authority. The county historically included the Furness and Cartmel peninsulas of Cumbria, northern Greater Manchester and Merseyside, and Warrington, but excluded the eastern part of the Forest of Bowland.

Eboracum (Classical Latin: [ɛbɔˈraːkũː]) was a fort and later a city in the Roman province of Britannia. In its prime it was the largest town in northern Britannia and a provincial capital. The site remained occupied after the decline of the Western Roman Empire and ultimately developed into the present-day city of York, in North Yorkshire, England.

Two Roman emperors died in Eboracum: Septimius Severus in 211 AD, and Constantius Chlorus in 306 AD.

York is a cathedral city in North Yorkshire, England, with Roman origins, sited at the confluence of the rivers Ouse and Foss. It has many historic buildings and other structures, such as a minster, castle and city walls, all of which are Grade I listed. It is the largest settlement and the administrative centre of the wider City of York district. It is located 27 miles (43 km) north-east of Leeds, 90 miles (140 km) south of Newcastle upon Tyne and 207 miles (333 km) north of London. York's built-up area had a recorded population of 141,685 at the 2021 census.

The city was founded under the name of Eboracum in AD 71. It then became the capital of Britannia Inferior, a province of the Roman Empire, and was later the capital of the kingdoms of Deira, Northumbria and Scandinavian York. In the Middle Ages it became the northern England ecclesiastical province's centre, and grew as a wool-trading centre. In the 19th century it became a major railway network hub and confectionery-manufacturing centre. In the Second World War York was bombed in the Baedeker Blitz. Although York was less targeted during the war than other, more industrialised northern cities, several historic buildings were gutted and restoration took place up until the 1960s.

Cumbria (/ˈkʌmbriə/ KUM-bree-ə) is a ceremonial county in North West England. It borders the Scottish council areas of Dumfries and Galloway and Scottish Borders to the north, Northumberland and County Durham to the east, North Yorkshire to the south-east, Lancashire to the south, and the Irish Sea to the west. Its largest settlement is the city of Carlisle.

Cumbria is predominantly rural, with an area of 6,769 km (2,614 sq mi) and a population of 510,680; this makes it the third-largest ceremonial county in England by area but the eighth-smallest by population. Carlisle is located in the north; the towns of Workington and Whitehaven lie on the west coast, Barrow-in-Furness on the south coast, and Penrith and Kendal in the east of the county. For local government purposes the county comprises two unitary authority areas, Westmorland and Furness and Cumberland. Cumbria was created in 1974 from the historic counties of Cumberland and Westmorland, the Furness area of Lancashire, and a small part of Yorkshire.

West Yorkshire is a metropolitan and ceremonial county in the Yorkshire and the Humber region of England. It borders North Yorkshire to the north and east, South Yorkshire and Derbyshire to the south, Greater Manchester to the south-west, and Lancashire to the west. The city of Leeds is the largest settlement.

The county has an area of 2,029 km (783 sq mi) and a population of 2.3 million, making it the fourth-largest ceremonial county by population. The centre of the county is urbanised, with Leeds located in the north-east, the city of Wakefield in the south-east, Huddersfield in the south-west, and the city of Bradford in the north-west. The outer areas of the county are rural. For local government purposes the county comprises five metropolitan boroughs: Bradford, Calderdale, Kirklees, Leeds, and Wakefield, which collaborate through West Yorkshire Combined Authority. The county was created in 1974, prior to which the area was within the West Riding of Yorkshire.

The Forest of Bowland, also known as the Bowland Fells and formerly the Chase of Bowland, is an area of gritstone fells, deep valleys and peat moorland, mostly in north-east Lancashire, England, with a small part in North Yorkshire (however roughly half of the area falls into the area of the historic West Riding of Yorkshire). It is a western outlier of the Pennines.

The Forest of Bowland was designated an Area of Outstanding Natural Beauty (AONB) in 1964. The AONB also includes a detached part known as the Forest of Pendle separated from the main part by the Ribble Valley, and anciently a royal forest with its own separate history. One of the best-known features of the area is Pendle Hill, which lies in Pendle Forest. There are more than 500 listed buildings and 18 scheduled monuments within the AONB.

The River Ribble runs through North Yorkshire and Lancashire in Northern England. It starts close to the Ribblehead Viaduct in North Yorkshire, and is one of the few that start in the Yorkshire Dales and flow westwards towards the Irish Sea (the Dee in Dentdale and the Twiss in Kingsdale being notable others).

South Yorkshire is a ceremonial county in the Yorkshire and the Humber region of England. It borders North Yorkshire and West Yorkshire to the north, the East Riding of Yorkshire to the north-east, Lincolnshire to the east, Nottinghamshire to the south-east, and Derbyshire to the south and west. The largest settlement is the city of Sheffield.

The county is largely urban, with an area of 1,552 km (599 sq mi) and a population of 1,430,623 in 2024. Sheffield is located in the south, with Rotherham immediately to the north-east. The city of Doncaster lies in the east, and Barnsley in the north. The far east and the west of the county are predominantly rural. For local government purposes the county comprises four metropolitan boroughs: Barnsley, Doncaster, Rotherham, and Sheffield. They collaborate through the South Yorkshire Mayoral Combined Authority.

An airborne early warning and control (AEW&C) system is an airborne radar early warning system designed to detect aircraft, ships, vehicles, missiles and other incoming projectiles at long ranges, as well as performing command and control of the battlespace in aerial engagements by informing and directing friendly fighter and attack aircraft. AEW&C units are also used to carry out aerial surveillance over ground and maritime targets, and frequently perform battle management command and control (BMC2). When used at altitude, the radar system on AEW&C aircraft allows the operators to detect, track and prioritize targets and identify friendly aircraft from hostile ones in real-time and from much farther away than ground-based radars. Like ground-based radars, AEW&C systems can be detected and targeted by opposing forces, but due to aircraft mobility and extended sensor range, they are much less vulnerable to counter-attacks than ground systems.

AEW&C aircraft are used for both defensive and offensive air operations, and serve air forces in the same role as what the combat information center is to naval warships, in addition to being a highly mobile and powerful radar platform. So useful and advantageous is it to have such aircraft operating at a high altitude, that some navies also operate AEW&C aircraft for their warships at sea, either coastal- or carrier-based and on both fixed-wing and rotary-wing platforms. In the case of the United States Navy, the Northrop Grumman E-2 Hawkeye AEW&C aircraft is assigned to its supercarriers to protect them and augment their onboard command information centers (CICs). The designation "airborne early warning" (AEW) was used for earlier similar aircraft used in the less-demanding radar picket role, such as the Fairey Gannet AEW.3 and Lockheed EC-121 Warning Star, and continues to be used by the RAF for its Sentry AEW1, while AEW&C (airborne early warning and control) emphasizes the command and control capabilities that may not be present on smaller or simpler radar picket aircraft. AWACS (Airborne Warning and Control System) is the name of the specific system installed in the American Boeing E-3 Sentry and Japanese Boeing E-767 AEW&C airframes, but is often used as a general synonym for AEW&C.

The River Ouse (/uːz/ OOZ) is a river in North Yorkshire, England. Hydrologically, the river is a continuation of the River Ure, and the combined length of the River Ure and River Ouse makes it, at 129 miles (208 km), the sixth-longest river of the United Kingdom and (including the Ure) the longest to flow entirely in one county. The length of the Ouse alone is about 52 miles (84 km) but the total length of the river is disputed.

It is a matter of opinion as to whether the River Ouse is formed at the confluence of the River Ure and the much-smaller Ouse Gill Beck at Cuddy Shaw Reach near Linton-on-Ouse, about six miles downstream of the confluence of the River Swale with the River Ure. An alternative opinion is recorded in a publication published in The Yorkshire Post in a series dated 1891, written and illustrated by Tom Bradley. His description and bird's-eye-view maps—specifically in his account of the River Swale—suggests that the River Ouse starts at the confluence of the Swale and the Ure. His narrative states that the Ouse has no specific source, simply flowing from the stated confluence until it runs into the Humber at the confluence of the Ouse and Trent.

The River Foss is in North Yorkshire, England. It is a tributary of the River Ouse. It rises in the Foss Crooks Woods near Oulston Reservoir close to the village of Yearsley and runs south through the Vale of York to the Ouse in the centre of York. The name most likely comes from the Latin word Fossa, meaning ditch. It is mentioned in the Domesday Book. The York district was settled by Norwegian and Danish people, so parts of the place names could be old Norse. Referring to the etymological dictionary "Etymologisk ordbog", ISBN 82-905-2016-6 deals with the common Danish and Norwegian languages – roots of words and the original meaning. The old Norse word Fos (waterfall) means impetuous. The River Foss was dammed, and even though the elevation to the River Ouse is small, a waterfall was formed. This may have led to the name Fos which became Foss.

The responsibility for the management of the river's drainage area is the Foss Internal drainage board (IDB). It has responsibility for the area from Crayke to the pre-1991 city boundary of York covering 9,085 hectares and 162.54 km of waterways. The Foss IDB is part of the York Consortium of Drainage Boards that oversees 10 IDB's in the Yorkshire region.

York Minster, formally the Cathedral and Metropolitical Church of Saint Peter in York, is an Anglican cathedral in the city of York, North Yorkshire, England. The minster is the seat of the archbishop of York, the second-highest office of the Church of England, and is the mother church for the diocese of York and the province of York. It is administered by its dean and chapter. The minster is a Grade I listed building and a scheduled monument.

The first record of a church on the site dates to 627; the title "minster" also dates to the Anglo-Saxon period, originally denoting a missionary teaching church and now an honorific. The minster undercroft contains re-used fabric of c. 1160, but the bulk of the building was constructed between 1220 and 1472. It consists of Early English Gothic north and south transepts, a Decorated Gothic nave and chapter house, and a Perpendicular Gothic eastern arm and central tower.

The City of York is a unitary authority area with city status in the ceremonial county of North Yorkshire, England.

The district's main settlement is York, and its coverage extends to the town of Haxby and the villages of Earswick, Upper Poppleton, Nether Poppleton, Copmanthorpe, Bishopthorpe, Dunnington, Stockton on the Forest, Rufforth, Askham Bryan and Askham Richard, among other villages and hamlets. The district had a population of 202,800 in the 2021 Census The City of York is administered by the City of York Council based in The Guildhall.

The Ribblehead Viaduct or Batty Moss Viaduct carries the Settle–Carlisle railway across Batty Moss in the Ribble Valley at Ribblehead, in North Yorkshire, England. The viaduct, built by the Midland Railway, is 28 miles (45 km) north-west of Skipton and 26 miles (42 km) south-east of Kendal. It is a Grade II* listed structure. Ribblehead Viaduct is the longest and the third tallest structure on the Settle–Carlisle line.

The viaduct was designed by John Sydney Crossley, chief engineer of the Midland Railway, who was responsible for the design and construction of all major structures along the line. The viaduct was necessitated by the challenging terrain of the route. Construction began in late 1869. It necessitated a large workforce, up to 2,300 men, most of whom lived in shanty towns set up near its base. Over 100 men lost their lives during its construction. The Settle to Carlisle line was the last main railway in Britain to be constructed primarily with manual labour.

ECHELON, originally a secret government code name, is a surveillance program (signals intelligence/SIGINT collection and analysis network) operated by the five signatory states to the UKUSA Security Agreement: Australia, Canada, New Zealand, the UK and the United States, also known as the Five Eyes.

Created in the late 1960s to monitor the military and diplomatic communications of the Soviet Union and its Eastern Bloc allies during the Cold War, the ECHELON project became formally established in 1971. By the end of the 20th century, it had greatly expanded.

Keighley (/ˈkiːθli/ KEETH-lee) is a market town and a civil parishin the City of Bradford Borough of West Yorkshire, England. It is the second-largest settlement in the borough, after Bradford.

Keighley is 8 miles (13 kilometres) north-west of Bradford, 4 mi (6.5 km) north-west of Bingley, 11 mi (18 km) north of Halifax and 8 mi (13 km) south-east of Skipton. It is governed by Keighley Town Council and Bradford City Council. Keighley is in West Yorkshire, close to the borders of North Yorkshire and Lancashire. Historically in the West Riding of Yorkshire, it lies between Airedale and Keighley Moors. At the 2011 census, Keighley had a population of 56,348.

Ripon (/ˈrɪpən/) is a cathedral city and civil parish in North Yorkshire, England, at the confluence of two tributaries of the River Ure, the Laver and Skell, noted for Ripon Cathedral, which is architecturally significant, as well as the Ripon Racecourse and other features such as its market.

The city was originally known as Inhrypum. Bede records that Alhfrith, king of the Southern Northumbrian kingdom of Deira, gave land at Ripon to Eata of Hexham to build a monastery and the abbot transferred some of his monks there, including a young Saint Cuthbert who was guest-master at Ripon abbey. Both Bede in his Life of Cuthbert and Eddius Stephanus in his Life of Wilfred state that when Eata was subsequently driven out by Alhfrith, the abbey was given to Saint Wilfrid who replaced the timber church with a stone built church. This was during the time of the Anglian kingdom of Northumbria, a period during which it enjoyed prominence in religious importance in Great Britain. It was for a period under Viking control, and later suffered under the Normans. After a brief period of building projects under the Plantagenets, the city emerged with a prominent wool and cloth industry. Ripon became well known for its production of spurs during the 16th and 17th centuries, but would later remain largely unaffected by the Industrial Revolution.

The Battle of Towton took place on 29 March 1461 during the Wars of the Roses, near Towton in North Yorkshire. Yorkist forces decisively defeated Lancastrian supporters of Henry VI, securing the English throne for Edward IV. Fought for ten hours between an estimated 50,000 soldiers from both sides in a snowstorm on Palm Sunday, it was "probably the largest and bloodiest battle on English soil".

Henry VI succeeded his father, Henry V, when he was nine months old in 1422, but was a weak, ineffectual and mentally unsound ruler, which encouraged the nobles to scheme for control over him. The situation deteriorated in the 1450s into a civil war between his Beaufort relatives and his wife, Queen Margaret, on one side, with those of his cousin Richard, Duke of York, on the other.

County Durham, officially simply Durham, is a ceremonial county in North East England. The county borders Northumberland and Tyne and Wear to the north, the North Sea to the east, North Yorkshire to the south, and Cumbria to the west. The largest settlement is Darlington.

The county has an area of 2,676 square kilometres (1,033 sq mi) and had a population of 894,025 in 2024. The centre and east of the county are more densely populated than the west, and the major settlements include Hartlepool on the south-east coast, Stockton-on-Tees in the south-east, Darlington in the south, and the city of Durham in the north-centre. Stockton-on-Tees is part of the Teesside conurbation, which extends into North Yorkshire. Barnard Castle is the largest town in the west of the county. For local government purposes the county comprises the unitary authority areas of County Durham, Darlington, Hartlepool, and part of Stockton-on-Tees. Durham County Council is part of the North East Combined Authority, and the councils of the other three areas are part of the Tees Valley Combined Authority. The part of Tyne and Wear south of the River Tyne was historically part of County Durham, and the part of Durham south of the River Tees was historically part of the North Riding of Yorkshire.