Fortress Ridge Geological feature Ridge on Lycon Plateau which extends north west for about 3.2 kilometres from Mount Hay Range west of Flat Top to the Fortress. Locate -33.653465815351, 150.36009199181 Type Geological feature {"name":"Geological feature","target":"","target_text":null,"date":{"#markup":"<span class='date'><\/span>"},"date_start":null,"date_end":null}