UPDATE: Shmuel Rabinowitz was located and escorted out of the woods, he was not hurt.
The Vermont State Police Search and Rescue Team were assisted by Killington Search and Rescue, Killington Fire Department, Killington Police Department, New England K9 Search and Rescue, Upper Valley Wilderness Response Team, Vermont Fish and Wildlife, Vermont Air National Guard, US Forest Service and the Green Mountain Club.
They say Rabinowitz may have used a cell phone from other hikers to call relatives late Thursday afternoon.
The 15-year-old from Montreal had been missing near the Copper Lodge in Killington since Wednesday evening.
Shmuel Rabinowitz was with a group of friends on the Appalachian Trail, he was last seen about 7:30 p.m. Wednesday.