Police are appealing for public assistance to help locate missing Clunes teen Scarlett.
The 15-year-old was last seen at Bacchus Marsh railway station about midday on Sunday 15 August.
Police and family are concerned for her welfare due to her age and the length of time she has been missing.
Scarlett is is described as being 170cm tall, with a slim build, black hair and a nose ring. She was last seen wearing a pink cardigan, red tartan skirt, fishnet stockings and white Converse runners.
An image of Scarlett has been released in the hope someone may recognise her and provide information on her whereabouts.
She is known to frequent the Bacchus Marsh and Melton areas.
Anyone who sees Scarlett or has information on her whereabouts is urged to contact Bacchus Marsh Police Station on 5366 4500.