The areas occur usually when part of an Exploration Licence is relinquished and the entire tenement has not expired.
Volcanic Eruption Points - this dataset was produced by combining data from previous Geological Survey of Victoria maps and reports and also data compiled by Julie Boyce (Monash University)
Oil and Gas Facilities Including Platforms, Power Stations etc. Land based installations are accurate to 10,000 metres except for sites updated from information from MAFFRI. Most platforms are accurate to 10 to 100 metres.
Energy Facilities Including Platforms, Power Stations, large consumers of energy etc.