After 70 years in the Morton family, the naturally irrigated land features the Diamantina River and Gumborie Channel floodout country.

The landmark property, in the far north east corner of the South Australia, stretches 660,000 hectares and has 15 steel drafting yards and 11 trucking yards across the run for movement of livestock.

The land is rated to carry 7800 cattle and the buyer will have the opportunity to buy a mixed herd of 2000 Shorthorn cattle.

Neighbour S Kidman & Co has not expressed interest.

Kidman's general manager Greg Campbell said it was unlikely the Kidman's would be interested in buying the property.

"We do have a lot of interest in that region but we already have substantial investments in that area," he said.

"If anything we would be looking further up north if we were going to buy anything," he said.

"I am not quite sure of the value of the property, every place is structured differently and it depends on how much water it has."

* The property will be auctioned on October 10 in Brisbane.