Jon, just wondering if this could be Anonychomyrma itinerans? Sorry it is a shockingly bad photo, but only after leaving the site I wondered about it. Thanks heaps, Christine.
Also elevation is 965m. Ant was about 3mm.
Hi Christine, Anonychomyrma is probably a fair guess, but the species and even the genus is debatable as it could also be an Iridomyrmex such as Iridomyrmex calvus (see link for photos). So for now I think it just has to be an ant. Cheers, Jon - https://antwiki.org/wiki/Iridomyrmex_calvus