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Lough Derg

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lake on River Shannon, in counties Clare (south-west), Galway (north-west), and Tipperary (to the east)

Key facts

Type
Freshwater lake
Primary inflows
River Shannon
Primary outflows
River Shannon
Basin countries
Ireland
Max length
38.6 km (24.0 mi)
Max width
12.9 km (8.0 mi)
Surface area
130 km (50 sq mi)
Average depth
7.6 m (25 ft)
Max depth
36 m (118 ft)
Water volume
0.887 km (0.213 cu mi)
Residence time
0.15 years
Shore length
179,000 m (587,000 ft)
Surface elevation
33.5 m (110 ft)
Settlements
Garrykennedy , Portumna , Killaloe & Ballina , Dromineer , Terryglass

via Wikipedia infobox

Wikidata facts

Instance of
lake
Area
118
Elevation
0
Image
Lough Derg, Ballycuggaran, Co Clare - geograph.org.uk - 1772010.jpg
Perimeter
179
Show 9 more facts
Commons category
Lough Derg (Munster)
basin country
Republic of Ireland
residence time of water
0.15
vertical depth
7.6
volume as quantity
887
watershed area
10280
historic county
County Galway
native label
Loch Deirgeirt
Sources (3)

via Wikidata · CC0

~3 min read

Encyclopedic overview

Lough Derg, historically Lough Dergart (Irish: Loch Deirgeirt), is a freshwater lake in the Shannon River Basin, Ireland. It is the third-biggest on the island of Ireland (after Lough Neagh and Lough Corrib) and the second largest lake in the Republic of Ireland.

It is a long, narrow lake, with shores in counties Clare (south-west), Galway (north-west), and Tipperary (to the east). It is the southernmost of three large lakes on the River Shannon; the others being Lough Ree and Lough Allen. Towns and villages on Lough Derg include Portumna, Killaloe & Ballina, Dromineer, Terryglass, Mountshannon and Garrykennedy.

Excerpted from Wikipedia’s “Lough Derg” article, available under the CC BY-SA 4.0 licence.

On the map