A search for a missing teenager, who fled from police more than a month ago after a high-speed car chase on South Australia's Eyre Peninsula, has so far failed to find the 19-year-old.
About 50 local police, mounted officers and volunteers began scouring an area of remote scrub west of Whyalla on Wednesday in the hunt for Scott Redman.
Police believe the teen was in a car that was involved in a pursuit on the Eyre Highway near Kimba on April 21.
The pursuit was terminated due to safety concerns, with the black station wagon found on a dirt road 40km east of Kimba four days later.
Inspector Mark Hubbard said the terrain was challenging, with heavy bush in some patches, but police were willing to cover up to 10 square kilometres.
"We have carefully searched a couple of key areas again, such as where the car was found, and expanded out from there," Insp Hubbard said.
"At this time we still have no clear information as to Mr Redman's location but given the passage of time we have growing fears for his wellbeing.
"It appears he told some friends and family he intended to travel to Western Australia, but we have found no confirmation that he has done so."
The search will resume on Thursday.