The Ontario Geological Survey (OGS) is an administrative Branch of the Ontario Ministry of Energy and Mines. It is responsible for documenting and communicating the Geology of Ontario, the (OAFD), the (ODHD), the (OMI), the (PUB) as well as many other geological publications that describe the geology of Ontario.

OGS helps people understand how to apply the geological knowledge about Ontario to address a range of public policy issues. The OGS is a public good organization. Its geological