Battle of Vinegar Hill - commemmoration in 2011 (Sydney, Australia)
I love the name, though the event itself back in 1804 was probably bloody & to be avoided.
Anyway, Blacktown Council have this on their events list ... but nothing specific. The location etc are To Be Confirmed
http://www.blacktown.nsw.gov.au/news-and-events/events-calendar/battle-of-vinegar-hill-commemoration-2011.cfm
"The first battle fought on Australian soil between government troops (with local defence support) and rebel forces was the Battle of Vinegar Hill fought in and around Rouse Hill on 5 March 1804. 2010 marks the 206th Anniversary of the Battle of Vinegar Hill. "
I'm hoping to make it there