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The Boyle River is a river in Ireland. Forming part of the 
Shannon River Basin
The Shannon River Basin consists of the area containing Ireland's longest river, the River Shannon, and all of its tributaries and lakes. The official Ordnance Survey Ireland length of the Shannon from its Shannon Pot source is made up of tidal ...
, it flows from Lough Gara
Lough Gara () is a lake in Counties Sligo and Roscommon, Ireland. It is an Important Bird Area protecting 1,788 ha of which most (1,742 ha) is designated as a Ramsar Site (a wetland having international importance under the Ramsar Convention).
...
on the Sligo
Sligo ( ; , meaning 'abounding in shells') is a coastal seaport and the county town of County Sligo, Ireland, within the western province of Connacht. With a population of 20,608 in 2022, it is the county's largest urban centre (constituting 2 ...
/Roscommon
Roscommon (; ; ) is the county town and the largest town in County Roscommon in Republic of Ireland, Ireland. It is roughly in the centre of Ireland, near the meeting of the N60 road (Ireland), N60, N61 road (Ireland), N61 and N63 road (Irelan ...
county border and thence through the town of Boyle
Boyle may refer to:
Places United States
* Boyle, Kansas, an unincorporated community
* Boyle, Mississippi, a town
*Boyle County, Kentucky
*Boyle Heights, Los Angeles, a neighborhood
Elsewhere
* Boyle (crater), a lunar crater
* 11967 Boyle, ...
to Lough Key
Lough Key () is a lake in Ireland. It is in the northwest of County Roscommon, northeast of the town of Boyle. The lough is believed to be named after a mythical figure named Cé.
Name
The name ''Lough Key'' comes from the Irish ''Loch Cé''. ...
. From there is continues eastwards through the village of Knockvicar
Knockvicar () is a village in County Roscommon, Republic of Ireland, Ireland. It is located on the R285 road, R285 Regional road (Ireland), regional road, between Boyle, County Roscommon, Boyle and Carrick-on-Shannon near Lough Key Forest Park ...
to the River Shannon
The River Shannon ( or archaic ') is the major river on the island of Ireland, and at in length, is the longest river in the British Isles. It drains the Shannon River Basin, which has an area of , – approximately one fifth of the area of I ...
at Lough Drumharlow, near Carrick-on-Shannon
Carrick-on-Shannon () is the county town of County Leitrim in Republic of Ireland, Ireland. It is the largest town in the county. A smaller part of the town located on the west bank of the River Shannon lies in County Roscommon and is home to th ...
.
The length of the Boyle River (from its source in County Mayo
County Mayo (; ) is a Counties of Ireland, county in Republic of Ireland, Ireland. In the West Region, Ireland, West of Ireland, in the Provinces of Ireland, province of Connacht, it is named after the village of Mayo, County Mayo, Mayo, now ge ...
to the Shannon) is 64.4 km (40 mi). The area of its basin is 725 km2.
Boyle River Basin
The Upper Shannon catchment, above Carrick-on-Shannon (area: 1,301 km2), has two distinct reaches, the River Shannon (basin area: 576 km2), which rises inCounty Cavan
County Cavan ( ; ) is a Counties of Ireland, county in Republic of Ireland, Ireland. It is in the Provinces of Ireland, province of Ulster and is part of the Northern and Western Region. It is named after the town of Cavan and is based on the hi ...
, and the Boyle River (basin area: 725 km2), with its source in County Mayo, which have their confluence at Lough Eidin/Drumharlow, approximately 4.7 km upstream of Carrick-On-Shannon.
The Boyle River has its origins in the rivers Lung
The lungs are the primary Organ (biology), organs of the respiratory system in many animals, including humans. In mammals and most other tetrapods, two lungs are located near the Vertebral column, backbone on either side of the heart. Their ...
and Breedoge, which flow into Lough Gara. The 29 km (18 mi) Lung River is fed by Urlaur Lough and Errit Lough
Errit Lough () is a freshwater lake in the west of Ireland. It is located in west County Roscommon in the catchment of the Boyle River (Ireland), Boyle River. The lake is a Natura 2000 site. It is protected as a List of Special Areas of Conserva ...
on the Mayo/Roscommon border.
The river flow from the furthest reaches of the Boyle catchment to Limerick
Limerick ( ; ) is a city in western Ireland, in County Limerick. It is in the Provinces of Ireland, province of Munster and is in the Mid-West Region, Ireland, Mid-West which comprises part of the Southern Region, Ireland, Southern Region. W ...
City has a measurement of 290 km (180ml). When added to the Shannon's 102.1 km (63.5ml) estuary, this gives a total river length of 392.1 km (243.5ml), which makes it the longest river within the Shannon River Basin (from source to mouth), 31.6 km (19.5ml) longer than the Shannon Pot
Shannon Pot () is a pool in the karst landscape in the townland of Derrylahan near Cuilcagh Mountain in County Cavan, Ireland. An aquifer-fed naturally fluctuating pool, it is the traditional source of the River Shannon. It has connections, ...
source.
See also
*Rivers of Ireland
Shown here are all the major rivers and tributaries of Ireland with their lengths (in kilometres and miles). Starting with the Northern Ireland rivers, and going in a clockwise direction, the rivers (and tributaries) are listed in regard to their ...
*List of loughs of Ireland
This is an alphabetical list of loughs (lakes) on the island of Ireland. It also shows a table of the largest loughs. The word '' lough'' is pronounced like ''loch'' () and comes from the Irish ''loch'', meaning ''lake''.
According to the Envir ...
*List of rivers of Ireland
This is an alphabetical list of the main rivers on the island of Ireland. It includes rivers that flow through the Republic of Ireland and Northern Ireland. Rivers that flow through Northern Ireland are marked with an asterisk (*). There are ove ...
References
{{DEFAULTSORT:Boyle Rivers of County Roscommon Tributaries of the River Shannon