Country-rock band, under the auspices of Peter Head. The band included members of both Head's previous band (Headband) and Fraternity, both Adelaide bands who shared management and disbanded at around the same time.
In a 2022 interview, Head is paraphrased as saying that 'More a collective of likeminded musicians than a band, some 240 members passed through between 1974 and 1979'. Members included Bon Scott (who performed with them for four months, and twelve gigs), Jimmy Barnes, and Glenn Shorrock.
Source: 'Country Rock, a Crash and a Coma: The Story of Bon Scott's Life as a Mount Lofty Ranger', Louder Sound, 13 April 2022 (https://www.loudersound.com/features/country-rock-a-crash-and-a-coma-the-story-of-bon-scotts-life-as-a-mount-lofty-ranger).