As far as I know, it's only in [[w:c:wow:#|World of Warcraft]]: "[[w:c:wow:#|Elrendar Falls]] is a waterfall just south of [[w:c:wow:#|Farstrider Retreat]] in [[w:c:wow:#|Eversong Woods]]. It pours from [[w:c:wow:#|Lake Elrendar]] into one of its many rivers, flowing northwest towards the [[w:c:wow:#|North Sea]]." (from [[w:c:wow:#|WoWWiki]]).