Belhavel Lough () is a freshwater lake in the northwest of Ireland. It is located in north
County Leitrim
County Leitrim ( ; gle, Contae Liatroma) is a county in Ireland. It is in the province of Connacht and is part of the Northern and Western Region. It is named after the village of Leitrim. Leitrim County Council is the local authority for the ...
Belhavel Lough is about south of Killarga and north of
Drumkeeran
Drumkeeran () is a village in County Leitrim, Ireland located at the junction of the R280 and R200 roads. It is situated in drumlin hills at the foot of Corry Mountain, just north of Lough Allen.
History
Throughout at least the 19th and 20th ...
. It covers an area of . The lake drains east into the Diffagher River, which eventually reaches
Lough Allen
Lough Allen () is a lake on the River Shannon in northeastern Connacht, Ireland. Most of the lake is in County Leitrim, with a smaller part in County Roscommon. The lake lies to the south of the River Shannon's source, near the Iron Mountains, ...
.
Ecology
The water quality was reported to be satisfactory with a mesotrophic rating, but had a "" ecological status indicating pollution, though
Zebra mussel
The zebra mussel (''Dreissena polymorpha'') is a small freshwater mussel. The species originates from the lakes of southern Russia and Ukraine, but has been accidentally introduced to numerous other areas and has become an invasive species in ma ...
infestation was not reported. The ecology of Belhavel Lough, and other Leitrim waterways, is threatened by curly waterweed,
zebra mussel
The zebra mussel (''Dreissena polymorpha'') is a small freshwater mussel. The species originates from the lakes of southern Russia and Ukraine, but has been accidentally introduced to numerous other areas and has become an invasive species in ma ...