Hilary Bonnell, 16, hasn't been seen since Sept. 5. (RCMP)

The mother of a missing 16-year-old girl from Eskinuopitijk First Nation is moving to a nearby community where she thinks her daughter disappeared.

Hilary Bonnell has not been seen since the morning of Sept. 5, when surveillance cameras showed her at a gas station on the main road past her community, commonly known as Burnt Church, in northeastern New Brunswick.

Pam Fillier, believes some people who live in nearby Riviere-du-Portage are connected to the disappearance of her daughter.

So Fillier and her husband are moving into a vacant family-owned trailer in that community on Monday to keep an eye on the people she suspects are involved.

"I'm moving in with you guys. I'm moving in. I'm coming. I'm going to be a resident of Portage River. They're gonna give me my daughter back," she said.

"I'm getting my little girl at all costs. At all costs. I'm getting my little girl."

Fillier has said the people she believes are responsible for abducting her daughter have threatened her and told her to back off. But she plans to continue to pressure people until she finds her daughter.

"The whole community has told me so many complaints about this particular group of men. They think I don't know about them, but I've sat in their home and I've told them, 'I know everything about you.'"

'I'm getting my little girl at all costs.'—Pam Fillier, mother of Hilary Bonnell

Hilary's family is also raising money for a national billboard campaign to help develop leads.

Meanwhile, the RCMP say their investigation is the largest Mountie operation on the Acadian Peninsula in more than four years.

A link to Rivere-du-Portage is just one of many possibilities they're considering as they hunt for Hilary, officers said.

The girl has dark eyes and black, shoulder-length hair. She is five five-foot-five and weighs about 134 pounds, and was last seen wearing a purple T-shirt, a black sweater, jean shorts and sandals.