TUPPER LAKE, N.Y. (WKTV) - Authorities are asking hunters and anyone else in the woods in the Town of Piercefield in St. Lawrence County and the town of Tupper Lake in Franklin County to look for and report signs of Colin Gillis, a teen who went missing back in March. Gillis, 18, of Tupper Lake, was last seen on March 10, 2012, walking on State Route 3 between the communities of Tupper Lake and Piercefield. He is described as 6 feet tall and weighs 170 pounds. Authorities said Gillis was last seen wearing a white American Eagle V-neck shirt with black stripes and short sleeves, blue Levi boot cut jeans, and red Nike Air high top sneakers. He may also have been wearing a reversible black or red L.L. Bean coat and carrying and orange and black day pack. Hunters have been helpful in the past locating and reporting signs of lost or missing persons in the woods. The DEC notes that leaves are off the trees and shrubs at this time of year, and hunters seek game in areas that most people do not enter and hunters are keen observers as they hunt. With that in mind, the DEC and State Police are asking that hunters or anyone else that find any items that Gillis may have been wearing or carrying are asked to contact State Police at 518-897-2000 or the DEC Dispatch at 518-897-1300. In March, DEC Forest Rangers, State Police, local emergency response agencies and the area search and rescue teams, assisted by hundreds of volunteers from the community spent seven days searching more than 2000 acres of lands, miles of the Raquette River and both Raquette Pond and Piercefield Flow. Volunteers alone expended more than 1,000 person days or approximately 10,000 hours actively searching for Gillis. State Police still have an open missing person investigation seeking Gillis. The DEC Forest Rangers search for him is in a limited continuous status. Under the limited continuous search local Forest Rangers, search and rescue teams and others continue to conduct spot searches and training exercises in the area, and periodic over-flights of helicopters will search the lands and waters in the area.