Ontario Mineral Inventory

The Ontario Mineral Inventory (OMI) database (previously known as the Mineral Deposit Inventory or MDI database) provides an overview of mineral occurrences in the province of Ontario. It contains information on location, geological environment, exploration history of metallic and industrial mineral occurrences, as well as some building stone and aggregate sites. Occurrences are categorized by their status (e.g., producing mine, developed prospect with reserves or resources, mineral occurrence, etc.). When available, current and historical production and resource data also are included.

Read the OMI description page for more information.

This data is best viewed using Google Earth or similar Keyhole Markup Language (KML) compatible software. For instructions on how to use Google Earth, read the Google Earth tutorial.

[KML]: Keyhole Markup Language [OMI]: Ontario Mineral Inventory

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Data Available

The data described here is available for you to use. [Learn more]
[See the licence for how you're allowed to use this data.]

No date range

1890-01-01 - 2022-08-03

Supporting Files

This dataset has no supporting files

Additional Info

Field Value
Geographic coverage Ontario
Geography Breakdown None
Source URL/Address
Author Email
Maintainer branch
Last Validated Date 2022-08-19
Update frequency Monthly
Access instructions