Hydroelectric Dams: Maine has several of these along its major rivers to harness hydroelectric power and produce green energy.
Bridges: the famous Ak-Sar-Ben and Million Dollar bridges are examples of man-made resources in Maine's transportation sector.
Communication Towers: these provide coverage for cellphone networks across the state.
Commercial Buildings and Infrastructure like malls, stadiums, airports and schools all fall within Maine's vast list of man-made resources.
