A large open, steep-sided but shallow limestone lake, situated 3 km south of Mullingar in County Westmeath. The Brosna river flows into the lake from the north. There are limited areas of reedbed and scrub and a number of small wooded islands. Calcareous grassland has colonized parts of the former lake bed. The site is used for angling, boating and camping, and some sections are managed for visitor access.
This site supports internationally important numbers of Anser albifrons flavirostris, which also use Lough Owel (site 139), Lough Iron-Glen Lough (site 135), Lough Derravaragh (site 138) and Garriskil bog (site 136).
BirdLife International (2021) Important Bird Areas factsheet: Lough Ennell. Downloaded from http://www.birdlife.org on 01/12/2021.