The Wallabies are confident they will adjust to Salta's high-altitude conditions despite spending most of their week preparing at sea level in Argentina's capital.
The Australian squad has set up camp in Buenos Aires for their Rugby Championship clash against Los Pumas on Sunday morning (AEST).
It will be the first time the Wallabies will have played in Salta, a city of about 600,000 inhabitants nestled in the foothills of the Andes mountains.
It's also 1152m above sea level, adding another layer of difficulty to an already tough assignment for the out-of-sorts Wallabies.
Australia's record at altitude is miserable, with only three wins from 22 matches in the South African Highveld strongholds of Johannesburg (1753m), Pretoria (1335m) and Bloemfontein (1395m).
Mario Ledesma's Argentina are already in Salta and will get a head start on acclimatising to the thin air and the extra fitness burden the conditions generally command.
In contrast, the Wallabies will get in only one field session in Salta - Friday's light captain's run at Estadio Padre Ernesto Martearena - before the match.
Centre Matt Toomua does not believe it will be a factor. In fact, he didn't even know Salta was at high altitude until it was put to him by a reporter.
"We've been here, we've prepared quite a few times, we're comfortable with that," Toomua said.
"It's something you kind of get used to after a day or two.
"We've all had a bit of experience at altitude. It's something you mention a little bit as a game controller.
"You probably can manage breaks a bit better if you feel guys are getting a bit spent, either using the kicking game or taking some unofficial time outs just to get that second wind.
"It's definitely a case of fighting through that and getting that second wind, because it does come."
Australia's previous three matches in Argentina have been in Mendoza, which sits 746m above sea level.
The Wallabies have won the past two and prepared in Buenos Aires for the first half of their training week last year before prevailing 37-20.
They have bettered that score only once in the 13 matches since, in a 63-30 rout of Japan last November.
