This Service represents the National DEM 1 Second Hydrologically Enforced product derived from the National DEM SRTM 1 Second and National Watercourses, lakes and Reservoirs

This service represents a hill shade (ground surface topography) and excludes vegetation features which has been dervied from the National DEM SRTM 1 Second. The sun angle used is 45 degrees azimuth and 45 degrees altitude. It is intended for large scale use for low lying area feature identification. The processing method is decsribe in the 1 Second SRTM Derived Product User Guide (Geoscience Australia, 2011)

This Service represents the National Flow Direction Grid of Australia. Based on a grid spacing of 9 seconds in longitude and latitude (approximately 250 metres) in the GDA94 coordinate system derived from the DEM SRTM 9 Second product

This service represents a hill shade (ground surface topography) and excludes vegetation features which has been dervided from the National DEM SRTM 1 Second. The sun angle used is 45 degrees azimuth and 30 degrees altitude. It is intended for large scale use for low lying area feature identification. The processing method is decsribe in the 1 Second SRTM Derived Product User Guide (Geoscience Australia, 2011)

This service represents a hill shade (ground surface topography) and excludes vegetation features which has been dervied from the National DEM SRTM 1 Second. The sun angle used is 315 degrees azimuth and 45 degrees altitude. It is intended for large scale use for low lying area feature identification. The processing method is decsribe in the 1 Second SRTM Derived Product User Guide (Geoscience Australia, 2011)

This Central Australian Fractured Rock Province dataset contains descriptive attribute information for the areas bounded by the relevant spatial groundwater feature in the associated Hydrogeology Index map. Descriptive topics are grouped into the following themes: Location and administration; Demographics; Physical geography; Surface water; Geology; Hydrogeology; Groundwater; Groundwater management and use; Environment; Land use and industry types; and Scientific stimulus. The Mesoproterozoic Musgrave Province is a significant geological feature in Central Australia, covering around 130,000 square kilometres across the tri-border region of Northern Territory, South Australia, and eastern Western Australia. It is characterized by east-west trending, metamorphosed igneous rocks, including granites, intrusions, and volcanics. The province experienced various deformation events, including the Mount West Orogeny and Musgravian Orogeny, resulting in the emplacement of granites and high-grade metamorphism. The Ngaanyatjarra Rift (1090 to 1040 Ma) is a failed intracontinental rift that formed due to magmatism-induced extension. The associated Giles Event was characterised by mafic to ultra-mafic intrusions (Giles Suite), bimodal volcanism and rift sedimentation (Bentley Supergroup), granitic intrusions and dyke emplacement. The Giles Event was followed by the emplacement of dolerite dykes including the Kullal Dyke Suite and the Amata Dolerite, approximately 1000 Ma and 825 Ma. The Peterman Orogeny played a crucial role in shaping the geological architecture of the Musgrave Province, forming the distinctive east-to-west-directed ranges.

This Maryborough-Nambour Basin dataset contains descriptive attribute information for the areas bounded by the relevant spatial groundwater feature in the associated Hydrogeology Index map. Descriptive topics are grouped into the following themes: Location and administration; Demographics; Physical geography; Surface water; Geology; Hydrogeology; Groundwater; Groundwater management and use; Environment; Land use and industry types; and Scientific stimulus. The Maryborough Basin is a half-graben intracratonic sag basin mainly filled with Early Cretaceous rocks, overlain by up to 100 m of Cenozoic sediments. It adjoins the older Nambour Basin to the south, comprising Triassic to Jurassic rocks. The boundary between the basins has shifted due to changes in sedimentary unit classifications, with the Cretaceous units now restricted to the Maryborough Basin and Jurassic and older units assigned to the Nambour Basin. Both basins are bounded to the west and unconformably overlies older Permian and Triassic rocks in the Gympie Province and Wandilla Province of the New England Orogen. In the south of the Nambour Basin, it partly overlaps with the Triassic Ipswich Basin. The Nambour Basin in the south is primarily composed of the Nambour Formation, with interbedded conglomerate, sandstone, siltstone, shale, and minor coal. Overlying this is the Landsborough Sandstone, a unit with continental, fluviatile sediments and a thickness of up to 450 m. In the north, the Duckinwilla Group contains the Myrtle Creek Sandstone and the Tiaro Coal Measures, which were formerly considered part of the Maryborough Basin but are now associated with the northern Nambour Basin. In contrast, the Maryborough Basin consists of three main Cretaceous units and an upper Cenozoic unit. The Grahams Creek Formation is the deepest, featuring terrestrial volcanic rocks, volcaniclastic sedimentary rocks, and minor pyroclastic rocks. The overlying Maryborough Formation was deposited in a continental environment with subsequent marine incursion and includes mudstone, siltstone, minor sandstone, limestone, conglomerate, and tuff. The upper Cretaceous unit is the Burrum Coal Measures, comprising interbedded sedimentary rocks deposited in fluvial to deltaic environments. The uppermost unit, the Eocene to Miocene Elliott Formation, includes sandstone, siltstone, conglomerate, and shale deposited in fluvial to deltaic environments. Cenozoic sediments overlying the Elliott Formation consist of Quaternary alluvium, coastal deposits, and sand islands like Fraser Island, influenced by eustatic sea level variations. Volcanic deposits and freshwater sediments also occur in some areas. Adjacent basins, such as the Clarence-Moreton Basin and Capricorn Basin, have stratigraphic correlations with the Maryborough Basin. The Oxley Basin lies to the south, overlying the Ipswich Basin. In summary, the Maryborough Basin and the older Nambour Basin exhibit distinct geological characteristics, with varying rock formations, ages, and sedimentary features, contributing to the diverse landscape of the region.

This dataset represents Northern Territory 5 metre DEM which has been derived from LiDAR and merged together from various projects and will be continually updated.

This Service represents the 5 metre Digital Elevation Model (DEM), with national coverage. It is derived from merged LiDAR and various projects. New data will be added to the service as it becomes available.

This Service represents the National DEM 1 Second Hydrologically Enforced product derived from the National DEM SRTM 1 Second and National Watercourses, lakes and Reservoirs