How were the Grampians formed according to the aboriginal legend?

The Aboriginal name for the Grampians is Gariwerd. In one version of the creation of the Grampians, the Aborigines tell that Gariwerd was created by the Great Ancestor Spirit, Bunjil.

In other version, the mountains were formed during a clash between Tchingal the giant emu and War the crow.

An extensive retelling of one story may be found at the related link below.