Llyn Arian
- (no website listed)
- was a shire in Lochac from 1 January 1988 to 31 March 1993
- became Mordenvale
Events Hosted by Llyn Arian
- Tajeki Feast (6 Aug 1988)
- Twelfth Night Investiture (7 Jan 1989)
- St Valentine's Day Masqued Ball (18 Feb 1989 at Garden Suburb Community Hall, Garden Suburb NSW)
- Royal Visit Potluck Revel (4 Oct 1990 at New Lambton Community Centre, New Lambton NSW)
- Spring Coronet (31 Aug - 1 Sep 1991 at Maitland Town Hall, Maitland / Speers Point East Public School, Warners Bay NSW)