Also found in: Wikipedia.
Barossa Valley(bərô`sə), region of South Australia, S Australia. A major area of wine production 40 mi (64 km) NE of AdelaideAdelaide,
city (2016 pop. 22,063, Greater Adelaide 2016 pop. 1,295,714), capital and chief port of South Australia, S Australia, at the mouth of the Torrens River on Gulf St. Vincent. It has automotive, textile, and other industries.
..... Click the link for more information. , the valley was named by Colonel William Light for the British victory over the French in the Battle of Barossa (1811; now Barrosa), Spain, in which he fought.