Areas unavailable for mineral exploration or mining across Tasmania. Polygons delineate areas in which exploration licence and mining lease holders are not permitted to explore for or extract minerals or atomic substances. Areas include those areas defined as unavailable under the Mineral Resources Development Act 1995 and areas which have been administratively excluded by Mineral Resources Tasmania.

The Mining (Strategic Prospectivity Zones) Act 1993 recognises the high mineral prospectivity of many areas of Tasmania. Within the Strategic Prospectivity Zones (SPZ) there are restrictions on changes of the status of parcels of Crown Land. The status of Crown land parcels <500 ha in size can only be changed with the agreement of the Director of Mines; those of > 500 ha in size cannot be changed without the approval of both houses of parliament. Should a change in land status made by the State have the effect of revoking a mining lease or an exploration licence, the tenement holder is entitled to compensation. The State is, however, not responsible for actions of the Australian Government which may preclude exploration or mining. activity, such as the nomination of parcels of land for World Heritage status. Changes in status of land can also be made in extreme circumstances, for example if a species of flora or fauna was to become rare, vulnerable or endangered as a result of mining activity, or where an area having cultural or natural heritage value could suffer substantial effects as a result of mining operations. In these cases the Crown may, after a recommendation from the Resource Planning and Development Commission and some Ministers, change the status of that piece of land, and compensation is payable for this action.

Mineral occurrences, including operating and abandoned mines, located in Tasmania, with summary mineral occurrence data, derived from the Mineral Occurrence Database, which is a component of the Tasmanian Information on Geoscience and Exploration Resources (TIGER) system; administered by Mineral Resources Tasmania (MRT). Mineral occurrences include operating and abandoned mines, prospects, mapped occurrences and mineral fields or mineralised areas. Mineral occurrences are shown subdivided by commodity type, which largely corresponds to the mineral categories defined in the Mineral Resources Development Act 1995; Fuel Minerals, including geothermal (Categories 2, 4 and 6), Construction Minerals (Category 3), Industrial minerals (Category 5) and metallic minerals (Category 1). Alluvial, placer and man-made (tailings dam) occurrences are shown separately (commodities are mineral Categories 1 and 5) and occurrences (generally abandoned mine workings) where there are no records of the commodity of interest, are shown as unknown. The summary Mineral Occurrence data includes: the Mineral occurrence name (note that an occurrence may have multiple names or aliases), the commodity type (as defined above), the nature of the occurrence (e.g., mine or prospect, mineralised area), the commodity or commodities present, the geological unit that hosts the occurrence and the positional accuracy of the record. A Details field provides a link to a Mineral Occurrence Details page where further information, including references and public domain resource figures, may be available.

The state of Western Australia is divided into various mineral fields, some are further divided into districts under powers contained in Section 16 of the Mining Act 1978. This dataset was formally known as Mineral Field Boundaries (DMP-004)

Thematic maps detailing land stability, advisory landslide zoning, geohazard modelling and Proclaimed Landslip Areas. Based on field mapping, geotechnical reports and interpretation of aerial photographs and LiDAR data.

Geological lines (contacts, faults, linears), geological rock units, and structure data derived from 1:50,000 and 1:63,360 Digital Geological Atlas printed map series and 1:25,000 digital geology data where available. Geological units and boundaries have been generalised and compiled for 1:250,000 scale. The digital data is available as a seamless state wide coverage and is used to produce the Digital Geological Atlas 1:250,000 Scale map series.