Then the natural dam on the Goulburn River failed, the lake drained, and the Murray River avulsed to the south and started to flow through the smaller Goulburn River channel, creating " The Barmah Choke " and " The Narrows " ( where the river channel is unusually narrow ), before entering into the proper Murray River channel again.

Then the natural dam on the Goulburn River failed, the lake drained, and the Murray River avulsed to the south and started to flow through the smaller Goulburn River channel, creating " The Barmah Choke " and " The Narrows " ( where the river channel is unusually narrow ), before entering into the proper Murray River channel again.

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