
The Ontario Drill Hole Database (ODHD) can be used to identify drill holes in Ontario and contains information for over 141,000 percussion, overburden, sonic and diamond-drill holes.
Data include location, company name, company hole number, hole orientation, hole depth, and overburden depth if applicable.
Data are provided in two formats in this release:
- a relational database, and
- a seamless ODHD provincial coverage in a geospatial GIS (ESRI® shape file) format
Access this resource on Scholars Geoportal.
Access this resource on Scholars Geoportal.