Assessment Files

Snapshot of Google Earth assessment file KML

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(updated September 1, 2021)

Assessment Files contains the technical results from all exploration work done in the province of Ontario.
Data include: details on location, property ownership, type of work done, commodities sought for each assessment file and a link to the PDF version of each file that is stored on GeologyOntario.

Download the Assessment Files database in GIS format. (updated September 1, 2021)

Additional donated data that are not available online may be accessed at each of the 8 Resident Geologist Program offices located throughout the province.