The Roper River is in the Northern Territory of Australia. It flows east for 400 km from near Mataranka before it flows into the Gulf of Carpentaria.[1]
The Roper was first explored by Europens in 1845, when the explorer Ludwig Leichardt crossed on his way west from Moreton Bay to Port Essington. He name it after a member of his group, John Roper.[2] It is can be used by boats as far as the Roper Bar, and in the 1880's there were several paddlesteamers working on the river.[2]
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