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Our Operation

Upper Canada Stone is a multi-product quarrying company that supplies a wide range of dimension stone and architectural aggregate products to various industries across North America. Our Operations consist of:
  • Administrative Offices in Oro-Medonte
  • Midnight Black Granite Quarry at River Valley
  • Madoc processing and packaging plant
  • Eldorado Chocolate Limestone Quarry
  • Mephisto White Calcite Quarry
  • Seven other marble quarries each within 10 km of the Madoc Plant