Maritime · Evidence-led place record
Unidentified Iron Pontoon No.1
North Arm, southern shore of Garden Island, Port Adelaide, South Australia
Unidentified Iron Pontoon No.1 was a built in and lost on . Abandoned
The oddity, explained
Why is Unidentified Iron Pontoon No.1 unusual?
Unidentified Iron Pontoon No.1 appears here because the approved source classifies it as maritime. The source describes it as Unidentified Iron Pontoon No.1 was a built in and lost on . Abandoned. Heritage Atlas treats that specific classification-and-description combination as the oddity; the score is a comparative discovery signal, not proof of mystery or the supernatural.
Evidence and further exploration
The coordinate, category and description remain tied to the cited source. Comparative oddness helps discovery; it does not add facts that the source does not provide.
Inspect the original evidence source ↗