Charleston is a small town in the Adelaide Hills of South Australia. It is situated on the Onkaparinga Valley Road between Woodside and Mount Torrens, on the main route from the Adelaide Hills to the Barossa Valley, and 3km south-east of Lobethal. Charleston is very close to the source of the River Onkaparinga.

Based on the paragraph above can we conclude that "South Australia contains the small town of Charleston, as well as the Barossa valley."?
Yes