Mistaken Island is an uninhabited island in the Dampier Archipelago, in the Pilbara, Western Australia.
Its area is about 10 hectares (25 acres).
It is connected to East Mid Intercourse Island, and thence to the mainland, by a causeway/bridge.
Over 3.5 million tonnes (7.7 billion pounds) are exported annually, with the bulk of this going to industrial use.
This article about a location in Western Australia is a stub.