The Elevated Wetlands are functional sculptures that symbolize the coming together of the plastics industry, art, and environmental stewardship. Located along the Don Valley Parkway near the Don Mills interchange, these structures purify polluted water from the heavily urbanized Don River watershed. A solar-run pump lifts water from the Don River into the first in a series of three raised plastic "planters". Recycled plastic is used as a soil substitute to promote vegetative growth, which in turn isolates and retrieves wastes, toxins and other impurities from the water. The water is emptied from the last sculpture into a natural wetland, which flows into the Don River. Artist Noel Harding created the sculptures.