A borehole is a general term for any narrow shaft drilled in the ground, either vertically or horizontally.

A borehole may be constructed for many different purposes, including:

  • extraction of water or fluid (e.g., oil) or gases (e.g., natural gas or methane)
  • for a geotechnical investigation
  • for an environmental site assessment
  • for mineral exploration
  • as a pilot hole for installing piers or underground utilities

This data contains a continuous log of strata for each borehole as well as for geocolumns.

A geocolumn is a collection of information from an examination of exposed substrate, such as in a quarry wall or along a roadway passage.

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Data Available

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1875-05-01 - 2012-01-01

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Additional Info

Field Value
Geographic coverage Ontario
Geography Breakdown None
Source URL/Address
Author Email
Maintainer branch
Last Validated Date 2018-08-30
Update frequency Historical
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