Search continues for missing SA man

A search is continuing for a 79-year-old man missing in South Australia's north.

The Whyalla man, who is experienced in the bush, was last seen on Saturday at a remote station at Angepena, near Leigh Creek, where he was staying.

A search was launched late on Monday night when his car was found by station staff and is now entering its fourth day having covered 300 square kilometres so far.

It involves the police helicopter, fixed wing aircraft and State Emergency Service volunteers.