Perth man missing for four days in rough terrain found alive

A Perth man missing for four days in rough Western Australian terrain has been found in good health.

Steven Allison, 43, left his Clarkson home on August 30, with police finding his car in Ajana, more than 500km north of Perth and east of Kalbarri, on Friday.

Mr Allison was found in the Ajana area yesterday evening, and has been taken to hospital, police said.

"Mr Allison is in good health and has been conveyed to Geraldton for medical assessment," a police statement said.

The police air wing, SES volunteers and police divers came together over the past four days to look for Mr Allison.

Police thanked all those who helped in the search and highlighted the "overwhelming support from the community".