Color print advertisement for a variety of activated carbons manufactured and and sold under the trade name "Cliffchar" by the Cliffs Dow Chemical Company, a subsidiary of the Dow Chemical Company located in Marquette, Michigan. The advertisement depicts a mountain stream, while the accompanying text details the use of charcoal (i.e. activated carbons) to improve the taste, color, and odor of municipal water to better mimic the quality of water from natural sources.