Ontario Base Map Index

This data contains an Index identifying Ontario Base Map map tiles.

Eastern and Southern Ontario is covered at a scale of 1:10,000. Northern Ontario is covered at a scale of 1:20,000.

We are no longer updating this data. It is best suited for historical research and analysis.

This product requires the use of GIS software.

*[GIS]: geographic information system

Ministry contact: Natural Resources and Forestry

Additional information

Geographic coverage
Last Validated Date
June 6, 2024
Update frequency

Ontario Base Map Index

Learn more about accessing data using different formats.

Date range: January 1, 1977 - February 4, 2008

  • Other
    Access to OBM Index English

    Last Updated: July 2, 2013

  • Other
    Accéder à la page Index de l'OBM French

    Last Updated: July 2, 2013


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