The 61-year-old woman was alone on her property in Ballandean, in the Southern Downs, about midday on Thursday when she was thrown from a tractor.

The tractor was towing a slasher, it then ran over her.

Despite her gruesome injuries, she was somehow still able to call emergency services for help.

Queensland Ambulance Service spokesperson Stephen Johns said the woman had life-threatening injuries.

"She received significant multiple trauma to her limbs, but was conscious and able to talk to paramedics, who were able to stabilise the lady," he told 7News.

"I've never seen or heard of anything like this. It's just a miracle she had enough sense to be able to get onto that phone really quickly and get that help to her."

IN OTHER NEWS

Queensland Police Service Senior Sergeant Gerard Brady told 7News the scene was confronting.

"It appears she has been on the ground for some time before emergency services were contacted," he said. "It's a tragic set of circumstances and a very confronting scene for all involved."

The woman was airlifted to Brisbane's Princess Alexandra Hospital in a critical condition.

Queensland Police Service forensic crash unit is investigating.