"Aggregates play a significant role in the everyday lives of all Ontario residents. They are an integral part of our roads, sidewalks, sewers, subway tunnels & airports. As well as our homes, offices, hospitals, schools & shopping centers." (MNR)
"Ontario consumes 170 million tonnes of stone, sand and gravel each year - more than any other natural resource. That's 14 tonnes or one truck load per person." (OSSGA)