You probably don’t think about gravel until a dump truck slows traffic or a new pit proposal sparks a neighbourhood fight, but the truth is bigger: your roads, sidewalks, schools, hospitals, and even the concrete under your feet all begin as stone, sand, and gravel. We connect those dots with Sharon Armstrong, executive director of the Ontario Stone, Sand, and Gravel Association, and unpack why aggregate is a “natural resource hiding in plain sight” across Ontario infrastructure. We get practical about how roads are built, why different aggregate sizes and specs matter, and what separates pits from quarries. Sharon explains why transport is often the biggest cost and a major emissions driver, and why the industry mantra “don’t make gravel travel” changes how you think about local supply versus long-haul trucking. We also dig into the real-world friction points that fuel public controversy, from truck traffic to the misunderstanding that you can just source material somewhere else. Then we walk through the licensing and approvals process: hydrogeology studies, air and noise work, traffic planning, municipal zoning, public consultation, rehabilitation plans, and what happens when decisions end up at the Ontario Land Tribunal. We also explore rehabilitation outcomes people rarely hear about, including recreation sites and emerging aquaculture uses that can speed up biodiversity in extremely clean quarry water. Plus, we answer listener gardening questions on fertilising, petunia recovery, and harvesting peppers and tomatoes. If you care about construction, land use, environmental review, or the future of Ontario building, this conversation gives you the missing context. Subscribe, share this with someone who debates local pits, and leave a review with your biggest takeaway.