On the fifth anniversary of the disappearance of Tamara Chipman, one of 18 women to go missing along B.C.'s "Highway of Tears," police are pleading for help from the public.

Chipman, 22, was last seen on Sept. 21, 2005, five kilometres east of Prince Rupert. She was hitchhiking to Terrace along Highway 16 -- on a stretch of road nicknamed for the girls and women who have vanished there since 1969.

She had recently shaved her head, but was known to wear red, blonde and brunette wigs. She may have been wearing a light jacket and jeans.

Chipman was reported missing almost two months later by her father. In 2008, Chipman's file was turned over to the RCMP's E-PANA project investigating murders and disappearances along the 500-kilometre stretch of highway between Prince George and Prince Rupert.

Police now believe that Chipman was the victim of foul play, but say they need information from the public to solve the case.

Anyone who may know something about Chipman's disappearance is asked to call the provincial unsolved homicide tip line at 1-877-543-4822 or Crime Stoppers at 1-800-222-8477.