This Side of the Black Stump is used to convey an perceived eastern border in Australia for where civilisation is contained. To go further is to be Beyond the Black Stump 
, and into the remote outback of Australia.
The origin of the expression, and the Black Stump itself, is contested for a few towns. As we known, brown signs lead us to destinations both known and unknown. If you have been unsure, this brown sign can set you in the right direction.
The This Side of the Black Stump sign is located at the Black Stump monument at Blackall. View that destination for directions and other information about the Black Stump in Blackall.