Australian Army Museum of Western Australia > Records

World War Two, Western Australia, Rottnest Island, Fortress Observation Post "Hill", Tree Hill Layout, 1943

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Overview

Configuration and equipment at Fortress Observation Post "Tree" at One Tree Hill Rottnest

Historical information

Fortress Observation Posts were all similar being camouflaged, splinter proof concrete blockhouses with unrestricted windows seaward. Each window had externally mounted steel shutters. Each location was on high ground with good visibility seaward. The locations were: Bare Hill (Code Name "Bare"); Cape Vlamingh (Code Name "Flame"); Mount Herschel (Code Name "Shell") and Tree Hill (Code name "Hill").

The roll of the Fortress Observation Posts in the coast defence system was to supply continuous target observation data to the Fortress Plotting Rooms at Oliver Hill and Bickley Point.

Details

Registration number

cwa-org-32-54-642

Contextual Information

This entry is based on research, documentation and technical drawings prepared by John Mercer during many years as a leading member of the Rottnest Island Military Restoration Committee and the Defence Heritage Interpretation Plan Group.

Links to additional resources

Instrument - Director No 10

Instrument - Stereoscopic Binoculars

Instrument - Barr and Stroud Rangefinder

Australian Army Museum of Western Australia

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