Lough Leane

Although the lake's name has been misinterpreted as meaning the "lake of learning" in reference to the monastery on Innisfallen, an island in the lake that was a centre of scholarship in the early Middle Ages, there is no linguistic evidence to support this belief. The lake takes its name from Léan Línfhiaclach, a character mentioned in the dindshenchas or place-lore tradition.{{cite book |last1=Stokes |first1=Whitley |title='The prose tales in the Rennes dindshenchas' in Revue Celtique 15 |date=1894 |page=451}}

Another historic site, the tower house Ross Castle sits on Ross Island in the lake. Ross Island is rich in copper. Archaeological evidence suggests the island has been mined since the time of the Bronze Age Beaker People.{{cite web|url=http://www.nuigalway.ie/ross_island/ross_island.htm|title=Ross Island|publisher=nuigalway.ie|accessdate=2014-04-11}}{{Cite journal |last=Northover |first=J. P. N. |last2=O'Brien |first2=W. |last3=Stos |first3=S. |date=2001 |title=Lead Isotopes and Metal Circulation In Beaker/Early Bronze Age Ireland |url=https://www.jstor.org/stable/30001669 |journal=The Journal of Irish Archaeology |volume=10 |pages=25–47 |issn=0268-537X}}

File:Ducks on Lough Leane.jpg

Lough Leane is approximately {{convert|19|km2|acre}} in size.{{cite web

|last=Dúchas

|authorlink=Dúchas

|title=The Lakes

|url=http://homepage.eircom.net/%7Eknp/lakes/index.htm

|accessdate=2007-07-01

|archiveurl=https://web.archive.org/web/20070615233331/http://homepage.eircom.net/~knp/lakes/index.htm

|archivedate=2007-06-15

|url-status=dead

}} It is also the largest body of fresh water in the region.{{cite web

| last = The Department of the Environment and Local Government

| authorlink =

| title = Living with Nature: The Designation of Nature Conservation Sites in Ireland

| website =

| publisher =

| date =

| url = http://www.botanicgardens.ie/gspc/ireland/living.pdf

| doi =

| accessdate = 2007-07-01

| archive-url = https://web.archive.org/web/20070927035707/http://www.botanicgardens.ie/gspc/ireland/living.pdf

| archive-date = 2007-09-27

| url-status = dead

}} It has become eutrophic as a result of phosphates from agricultural and domestic pollution entering Lough Leane Reedbed, an important habitat on the edge of Lough Leane. This nutrient enrichment has caused several algal blooms in recent years. The blooms have not yet had a severe effect on the lake's ecosystem. To prevent further pollution causing a permanent change in the lake's ecosystem, a review of land use in the catchment area is being carried out. Water quality in the lake appears to have improved since phosphates were removed from sewage in 1985.{{cite web

|last=National Parks and Wildlife Service

|title=Killarney National Park, Macgillycuddy's Reeks and Caragh River Catchment Site Synopsis

|date=2005-12-05

|url=http://www.npws.ie/media/Media,3866,en.pdf

|accessdate=2007-07-01

|archiveurl=https://web.archive.org/web/20071119114320/http://www.npws.ie/media/Media%2C3866%2Cen.pdf

|archivedate=2007-11-19

|url-status=dead

}}

Lough Leane is a habitat for the critically endangered blunt-snouted Irish char (Salvelinus obtusus) and Killarney shad (Alosa killarnensis).

• Eóganacht Locha Léin, a ruling sept in the area during the Middle Ages

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Category:Lakes of County Kerry