Police say an 83-year-old Greenfields woman may have been laying in a creek for over 24 hours before she was found by SES volunteers.
Margaret Lowden, who has dementia, walked off from her retirement home on Legend Crescent on Wednesday morning.
A land and air search begun at 7.30am on Friday and after three hours she was found by SES volunteers laying in a creek in bushland off Old Pinjarra Road.
Mrs Lowden was taken by ambulance to Peel Health Campus.
Police say she appears to be in reasonably good health despite being missing for 48 hours.
Cooloongup man accused of historical child sex offences dies just weeks before trial
Boat owners urged to make safety a priority this Easter
Mundijong man accused of attempting to procure children overseas for sexual activity
PM Anthony Albanese to address nation
Mandurah teacher who raped student to remain on bail
Man charged after allegedly exposing himself to girl on Transperth bus in Lakelands
Fire rips through Golden Bay home
Firefighters battle bushfire near Nambeelup
Alcoa Children's Festival cancelled due to severe weather