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Open Aggregates is a searchable information portal for pit and quarry operations that produce stone, sand, and gravel for the landscape and construction markets across Ontario.

Search for pits near your job site here with our "Product and Source Finder".
Beyond products, some pits feature information on land rehabilitation, sustainability practices, community participation, and Indigenous treaty rights.

Own or Operate a Pit or Quarry?
Fill out the owner form (or email or call) to update your listing and be included in our product finder.

Navigate the map with your mouse by clicking on the clusters of pits and quarries or by zooming in and clicking on a 'purple pick and shovel' icon for detailed information on a given company and their site operations. You can also browse the 'Company Listing' page or use the search feature.

Open Aggregates is operated by Greycoat Software and is updated to provide more specific information on the programs in place at a pit or quarry near you.

There are 2817 aggregate companies listed in the Open Aggregates database, with a total of 6234 aggregate sites included.


*Legal Disclaimer of Liability (click for more)*
1) Greycoat Software assumes no legal liability for the use of the data found within the Open Aggregates network. Information obtained here should not be used for legal or jurisdictional purposes. 2) Data on this site has been compiled through proprietary and open data including that from Land Inventory Ontario (Contains information licensed under the Open Government Licence Ontario -, and Natural Resources and Forestry (Pits and Quarries Online)

Map Layers
First Nations Reserves (Points)
Ontario EcoZones
Ground Water Monitoring Network Well
Ontario Greenbelt