Overview
- SA Police began another aerial sweep on Monday focusing on the corridor between Blue Dam and Andamooka, expanding previous search coverage.
- Trisha Graf, 41, was last seen driving in Roxby Downs in the early hours of Friday, December 12.
- Her white 2012 Ford Territory with registration S254BCX was found the next day near Blue Dam in an undriveable state.
- Earlier operations included land and air searches and specialist dive teams, and some activity paused last week due to severe weather.
- Police say they hold grave concerns for her welfare and urge anyone with information to contact Crime Stoppers on 1800 333 000.