Australia's central open data catalog, aggregating datasets from federal, state, and territory governments, with extensive spatial coverage.
data.gov.au is the Australian Government's central catalog of open data, federating datasets from Commonwealth, state, and territory agencies. It includes a strong spatial component, with boundaries, addresses, environment, and statistical data widely available.
Most datasets are released under Creative Commons licensing, free to reuse with attribution. For authoritative national base data such as elevation and Earth observation, data.gov.au is complemented by Geoscience Australia.
Commonwealth agencies plus state and territory governments, making it a single discovery point across Australian jurisdictions.
Creative Commons Attribution (CC BY) is the most common licence, allowing free reuse with attribution; some datasets use other terms.
Geoscience Australia provides authoritative national elevation, geology, and Earth observation products, discoverable alongside data.gov.au.
Sweden's national mapping, cadastral, and land registration authority, providing topographic maps, elevation, orthophotos, and property data.
France's national mapping agency portal, providing authoritative reference geographies, imagery, and topographic data through downloads and OGC services.
The EU's central access point for spatial data published under the INSPIRE Directive, harmonizing geographic themes across member states.
Great Britain's national mapping agency portal, offering both free OS OpenData products and premium large-scale mapping through modern APIs.
Iceland's national mapping agency, providing authoritative topographic data, elevation, and base mapping as open data.
The official portal for European open data, harvesting over a million datasets from EU institutions and member-state national portals.
Massachusetts's Bureau of Geographic Information, a leading state GIS program providing authoritative statewide spatial data.
Oklahoma's geographic information hub (OKMAPS), providing free downloadable statewide GIS data and web services.
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