CASTLE ROCK LOOKOUT
Shallow marine sandstone and quartzite; contains metazoan fossils.
Quartzite and sandstone, white or light grey, locally flaggy and fossiliferous.
WEATHERING & EROSION
Heavy weathering and erosion has left a small part of the outcrop visible over Hawker,
Australian Government, Geoscience Australia. (n.d.). Backstairs Passage Formation | Australian Stratigraphic Units Database, Geoscience Australia. Last update: September 3, 2019.
South Australian Government. (n.d.). SARIG geological map. SARIG.