The Avonbeg River rises on the northern flank of Carmenbologue Mountain in the Wicklow Mountains

Wicklow Mountains

The Wicklow Mountains form the largest continuous upland area in Ireland. They occupy the whole centre of County Wicklow and stretch outside its borders into Counties Carlow, Wexford and Dublin. Where the mountains extend into County Dublin, they are known locally as the Dublin Mountains...

 and flows southeast into the valley of Glenmalure

Glenmalure

Glenmalure is a valley in the Wicklow Mountains in eastern Ireland. It is a u-shaped glacial valley, with only one road leading into it, which connects to the 'Military Road' at the mouth of the valley....

. It continues southeast through the villages of Greenan and Ballinaclash

Ballinaclash

Ballinaclash is a village in east County Wicklow centred on a bridge that carries the R753 regional road across the River Avonbeg.The village is mentioned in J.M...

 before joining the Avonmore

River Avonmore

The Avonmore River also known as Abhainn Dé flows from Lough Dan in the Wicklow Mountains west of Roundwood. It flows in a generally southerly direction for approximately before joining the Avonbeg at the Meeting of the Waters to form the River Avoca, which in turn discharges into the Irish Sea...

 at the Meeting of the Waters (Cumar an dá Uisce) to form the River Avoca

River Avoca

The Avoca is a river in County Wicklow, Ireland. It is contained completely within the county.The Avoca starts life as two rivers, the Avonmore and the Avonbeg...

, which in turn discharges into the Irish Sea

Irish Sea

The Irish Sea separates the islands of Ireland and Great Britain. It is connected to the Celtic Sea in the south by St George's Channel, and to the Atlantic Ocean in the north by the North Channel. Anglesey is the largest island within the Irish Sea, followed by the Isle of Man...

 at Arklow

Arklow

Arklow , also known as Inbhear Dé from the Avonmore river's older name Abhainn Dé, is a historic town located in County Wicklow on the east coast of Ireland. Founded by the Vikings in the ninth century, Arklow was the site of one of the bloodiest battles of the 1798 rebellion...

. From source to sea the river remains in East Wicklow. Avonbeg Road, Avonbeg Drive, Avonbeg Park and Avonbeg Gardens in Tallaght

Tallaght

Tallaght is the largest town, and county town, of South Dublin County, Ireland. The village area, dating from at least the 17th century, held one of the earliest settlements known in the southern part of the island, and one of medieval Ireland's more important monastic centres.Up to the 1960s...

, Dublin are named after the river.

See also

Rivers of Ireland

Rivers of Ireland

The longest river in Ireland is the The longest river in [[Ireland]] is the The longest river in [[Ireland]] is the [[River Shannon, 386 km . The river develops into three lakes along its course, [[Lough Allen]], [[Lough Ree]] and [[Lough Derg |Lough Derg]]. Of these, Lough Derg is the...