Gartan Lough (),[ also known as Lough Beagh South, is a freshwater lake in the northwest of Ireland. It is located in north County Donegal close to the eastern boundary of Glenveagh.
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Geography
Gartan Lough is about west of Letterkenny. It measures about long and wide.[
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Hydrology
Gartan Lough is fed by the Bullaba River entering at its southern end. The lake drains northeastwards into the River Leannan, which in turn enters Lough Fern.[
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Natural history
Fish species in Gartan Lough include Arctic char. Gartan Lough is part of the Leannan River Special Area of Conservation.[
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See also
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List of loughs in Ireland
