The Webbs Creek (officially designated as a river[3]) rises below the Womerah Range, near the Devils Hole in remote country within the Parr State Conservation Area. The river flows generally north-east by east before reaching its confluence with the Hawkesbury River, south-west of Wisemans Ferry. The river descends 271 metres (889 ft) over its 40-kilometre (25 mi) course.[2]