LocalitiesLaunceston City
Type AreaTrent Street, Youngtown
Grid Reference41° 28’ 46.82” S; 147° 10’ 21.30” E; Elevation 101m ASL
Geology Sheet 1:25 000 Launceston (Calver and Forsyth 2005)
Confidence LevelHigh
Land Salinity
Salt Export
Water Salinity


The Youngtown Hydrogeological Landscape (HGL) is characterised by a north-west south-east, fault-zone parallel, elongate ridge of deeply weathered dolerite. This HGL is located in southern Launceston. This is an area of moderate rainfall (680 mm). It is similar in structure, rock type and regolith development, to the Reed HGL.

Typical lithologies for this HGL are deeply weathered Jurassic dolerite and fractured Jurassic dolerite.

View Report