Datasets

NSW Crossing Dataset

Contours are virtual imaginary lines on the ground, joining points of an equal elevation in relation to the Australian Height Datum (AHD). It is a line feature class of the NSW Digital Topographic Database ( DTDB), within the Physiography theme. A contour can be a standard contour, depression contour or an ancillary contour. The Elevation attribute is defined as the distance along the vertical (direction of gravity) from the geoid (approximately mean sea level) to a point. The elevation range is -4 m to 2220 m.

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