RCMP in British Columbia called off a ground and air search late Sunday for a missing tree planter.

Nicole Hoar, 25, was reported missing from a tree-planting camp near Prince George on July 2.

About 100 volunteers searched areas around Prince George, Burns Lake and Smithers for the past four days.

But RCMP spokesperson Const. Mike Herchuk announced an end to that part of the investigation. "The most visible aspect of this search is over, but this search is never over. There's plenty of legwork to be done."

He said police planned to screen security footage from convenience stores and gas stations along Highway 16 in northern B.C., where Hoar was last seen.

She told friends she was going to hitchhike from Prince George to Smithers, 370 kilometres away.

Hoar, from Red Deer, Alberta, is 5'8", 130 pounds, collar-length brown hair and blue eyes. She was last seen wearing beige capri pants, a grey shirt and sandals.