Major streamlines of WA, coded with a hierarchy and are named. The dataset includes many streams in addition to the detailed Hydrography in areas where its data is limited (eg. Eastern Wheatbelt and Western Plateau). Dataset is designed to be evolving as more information becomes available (eg. Aerial Photography).

USAGE: The Hydrography, Linear (Hierarchy) dataset is used by DWER for broad scale streamline presentation. It also provides definition of streamlines in ancient drainage landscapes, when other datasets do not have linework.

This dataset was formally known as Hydrography Linear (Heirarchy) (DOW-029)