Drill Holes

Drill Holes

The GeologyOntario (includes OGSEarth) web pages will be updated with a new look in the coming weeks, starting at the end of September 2021.
The updated design improves the user experience by simplifying the layout, making the pages more mobile compatible, and aligning with other Ministry web pages.
Please contact Alphons Evers (alphons.evers@ontario.ca) if you encounter any issues after the change or have any questions.

During this update, this page will be removed. Please update your bookmark to the following: Ontario Drill Hole Database (ODHD).

(updated September 1, 2021)

Drill Holes contains information on surface and underground drilling done as outlined by assessment files.

Data includes: company name, company hole number, township and a link to the full drill hole record on GeologyOntario.

Download the Ontario Drill Hole database in GIS format. (updated September 1, 2021)