The organiser of the famous Myponga Pop Festival, held in 1971, has plans to commemorate the 50th anniversary of the event.
About 8000 people attended the festival, which was held on a property on Pages Flat Road from January 30 to February 1 and headlined by Black Sabbath.
It was the first three-day camping festival to be held in the country, and was the place where many up-and-coming Australian acts scored the exposure boost they needed.
As the 50th anniversary of the festival approaches, organiser Alex Innocenti and author Lindsay Buckland want to install a plaque at the festival site in honour of the historic event.
"We want to give a profile to the growing Fleurieu Peninsula with the plaque and create interest for locals and interstaters," Mr Buckland said.
The pair presented a deputation to the District Council of Yankalilla's August 20 council meeting, requesting funding assistance for the project.
"It was a great festival ... I do remember getting rained on on the second night," councillor Ruth Trigg said after the presentation.
"I'd throw $50 in for the plaque. I think you'd find you'd get more support if you went through the community."
Elected members decided to work with the men to find a location for the plaque, and "contribute up to $700 and arrange instalment" of the plaque.
"I support it as an interesting historical memorial and it could generate more events," Cr Trigg said.
Mr Buckland and Mr Innocenti revealed they were working on a mini festival as a commemorative event to be held on the anniversary, which would include local producers and performers, along with a surprise guest.
Councillor David Olsson said the plaque and a potential event in 2021 was an "exciting prospect" for the district.