GeologyOntario is an online warehouse that contains all of the publically available digital data collected by the Mines and Minerals division. All data is available for download and can be discovered by using attribute-based search.

The GeologyOntario Web site will be undergoing a significant change at the beginning of 2017. As a result of hardware upgrades and the requirement for the site to be compliant with the Accessibility for Ontarians with Disabilities Act (AODA), the search functionality will be simplified.

This affects all databases.

Further information on these changes and the use of the new site will be provided. If you have any questions, please contact the Publications Services Unit.

Please note that geoscience and mineral exploration data collected by the Mines and Minerals Division can be viewed spatially using the OGSEarth application (

We are committed to providing accessible customer service.
If you need accessible formats or communications supports, please contact us.

Available Data

GeologyOntario provides access to all Ontario Geological Survey maps, reports and digital datasets. Other data is also available, including:

  • Client-submitted assessment files
  • Mineral deposits
  • Rock sample lithogeochemical analysis
  • Drill hole records
  • Mining hazards including abandonded mines

View and Search Data Visually

Geology Ontario data can be viewed and visually explored or searched through OGS Earth.