The family of Olimpia Mikszan is marking the 20th anniversary of her disappearance with an appeal to the public for any new information.

Mikszan graduated from Abbotsford Secondary School (Abbotsford Police)

The 18-year-old was last seen on the morning of June 21, 1996 outside her basement suite apartment in central Abbotsford, accompanied by an acquaintance.

She was reported missing by friends the next day.

"Where is she? We would like to find out. What happened? We want closure, we want the truth," said Elzbieta Mikszan, Olimpia's mother.

"If she's somewhere and someone knows something about her please help us to bring her back. She was a very special person in our life."

Mikszan was last seen with an acquaintance outside her basement suite apartment of this home June 21, 1996. (Abbotsford Police)

Const. Ian MacDonald said Abbotsford police followed up on a number of tips 20 years ago before the case went cold.

"We want to make a public appeal for anyone who might have a recollection of Olimpia, who might have seen her in and around this time in June," he said.