Police are no closer to finding a missing 20-year-old central B.C. woman one year after her disappearance.

Madison Scott went missing on May 28, 2011, after attending a bush party near Vanderhoof. Her truck and tent were later found at a campsite at Hogsback Lake, south of Vanderhoof.

"We're looking at foul play here. There is no reason for her to leave," said RCMP Const. Lesley Smith. "No connection at all to any gang affiliations. But it is unknown who was at that party at the time."

Smith believes there are people who know where Scott is or what happened her.

"What we're finding is that we're hearing a lot of rumours," she said.

"So we want to hear from that person — not the third person, not from the postman's daughter's boyfriend's butcher. We want to hear from that individual. If they saw something that they thought is not going to be important for RCMP, we want to hear from that individual."

The Scott family has declined most media interviews, but Dawn and Eldon Scott posted a public plea for witnesses to come forward in a re-enactment video.

"Somebody out there has information. We need them to come forward," Dawn Scott said.

"And soon," Eldon Scott added. "Like now would be a good time."

The Scott family is offering a $100,000 reward for information leading to an arrest and conviction in Scott's disappearance.

With files from the CBC's Wil Fundal