Under the Canopy

Episode 149: Stone, Sand, And Gravel Explained For Everyday Life

June 15, 2026·1h 11m
Episode Description from the Publisher

The modern world feels like steel and glass, but it actually starts with something far less glamorous: stone, sand, and gravel. We sit down with Sharon Armstrong, Executive Director of the Ontario Stone, Sand, and Gravel Association, to unpack the “hidden in plain sight” resource that becomes our roads, sidewalks, bridges, hospitals, schools, and homes, and why most of us only notice it when a gravel truck slows us down. We get practical fast. Sharon explains what “aggregate” really means, h...

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