GEODATA TOPO 250K Series 3 is a vector representation of the major topographic features appearing on the 1:250,000 scale NATMAPs. Data is arranged within specific themes. All data is based on the GDA94 coordinate system. The 250K transport data used in the National Map base map are seamless national datasets and cover the whole of Australia. The transport datasets have been updated since the GEODATA TOPO 250K Series 3 release.

The dataset contains spatial locations in point format as a representation of Immigration Detention Facilities in Australia. Definition: Immigration detention centres primarily accommodate people who have overstayed their visa, breached their visa conditions and had their visa cancelled or have been refused entry at Australia's entry ports.

This point dataset contains the major airport control towers in Australia.

The National Major Dam Walls dataset presents the spatial locations; in point and polygon format, of all known major dam walls within Australia.

This point dataset contains ferry terminals in Australian waters that include infrastructure facilities for maritime vessels to load and unload passengers and/or vehicles.

Governments at the Commonwealth, State, Territory and Local level are committed to minimising the impact of natural disasters through a variety of Disaster Risk Reduction (DRR) programs. Risk analysis is one of the processes undertaken to inform DRR decision making and policy development. It involves estimating the extent and severity of one or more natural hazards, understanding the location and characteristics of the 'elements at risk' from those hazards (also known as exposure) and modelling the vulnerability and response of those elements exposed to the subject hazards. Understanding the vulnerability of buildings is crucial in risk analysis activities, as damage to buildings can have significant direct and indirect impacts on individuals, communities, economies and the functioning of society at large. The development of quality spatially-enabled information is a key activity in the risk analysis process. After demonstrating a proof of concept in 2005-2006, Geoscience Australia has led the development of exposure information for Australia via the National Exposure Information System (NEXIS). Within NEXIS, currently available spatial and non-spatial data from various sources is routinely combined, reorganised for consistency, managed and supplied to stakeholders. The products derived from NEXIS enable risk analysis specialists and policy makers to access recent exposure information they require to analyse and assess the risk posed by the hazards in Australia. At the core of NEXIS is information about buildings. There are many challenges to developing and providing reliable information about buildings across the country. Through an offer of assistance from the ACT Government, Geoscience Australia has developed an innovative and rapid method to analyse and interpret cadastral data to estimate an important exposure attribute. This presentation describes the development of the method, the resulting benefits for exposure information in the ACT and outlines how cadastral data can improve DRR outcomes across Australia.

The dataset contains spatial locations in point format as a representation of correctional facilities in Australia.

The dataset contains spatial locations, in point format, of the Australian High Court, Australian Federal Courts and the Australian Magistrates Courts.

<b> Removed from distribution 30/09/2020 on advice of Barry New</b> This point dataset contains the major ports in Australian waters that include infrastructure facilities where maritime vessels have the ability to load and unload commodities.

Due to licence restrictions on the National Electricity Transmission Lines dataset, the metadata statement is the only information available for release. For further information contact clientservices@ga.gov.au This dataset contains the high voltage electricity transmission lines that make up the electricity transmission network in Australia .