Ben Fisk hammers a tap and collection tube into the trunk of a maple tree at a timber stand in Newbury, N.H. An unusually mild winter across much of the Northeast has raised some concerns about the maple syrup harvest. (Associated Press)

Ben Fisk hammers a tap and collection tube into the trunk of a maple tree at a timber stand in Newbury, N.H. An unusually mild winter across much of the Northeast has raised some concerns about the maple syrup harvest. (Associated Press)