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: Paleozoic Geology.
Paleozoic Geology contains a layer which depicts southern Ontario geological units formed during the Paleozoic era.
Data includes: Paleozoic geological units, linear features such as faults, point features such as quarries, drill hole and outcrop locations and photos depicting key sections of each of the Paleozoic rock formations found across southern Ontario.
Download the Paleozoic Geology data in GIS format.