Editing Glendalough (section)

===Geography===
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The valley of Glendalough was formed during the [[Last glacial period|last ice age]] by a [[glacier]] which left a [[moraine]] across the valley mouth. The '''Poulanass River''', which plunges into the valley from the south, via the '''Poulanass Waterfall''', created a [[River delta|delta]], which eventually divided the original lake in two.<ref>{{Cite book |last=Nairn |first=Richard |title=Discovering Wild Wicklow |publisher=TownHouse and CountryHouse |year=2001 |isbn=1-86059-141-8 |pages=8}}</ref> Surrounding Glendalough are the mountains of [[Camaderry]] {{convert|699|m|ft}}, the [[hydroelectric]] station at [[Turlough Hill]] {{convert|681|m|ft}}, and large [[massif]] of [[Conavalla]] {{convert|734|m|ft}} which dominates the head of the valley, and the peaks of [[Lugduff]] {{convert|652|m|ft}}, and [[Mullacor]] {{convert|661|m|ft}}.<ref name="dillon">{{Cite book |last=Dillion |first=Paddy |title=The Mountains of Ireland: A Guide to Walking the Summits |publisher=Cicerone |year=1993 |isbn=978-1852841102 |quote=Walk 7: Turlough Hill, Camaderry}}</ref><ref name="collins">Mountainviews, (September 2013), "A Guide to Ireland's Mountain Summits: The Vandeleur-Lynams & the Arderins", Collins Books, Cork, {{ISBN|978-1-84889-164-7}}</ref>