This map service provides access to the Chronology dataset shown on the GeoAtlas application.
**Please Note – All published Saskatchewan Geological Survey datasets, including those available through the Saskatchewan Mining and Petroleum GeoAtlas, are sourced from the Enterprise GIS Data Warehouse. They are therefore identical and share the same refresh schedule. This dataset represents the chronology for the Province of Saskatchewan at 1:1 million scale. It is a regional distribution of bedrock categorized by age into Archean, Archean or Proterozoic, Proterozoic, Helikian, Ordovician, Silurian, Devonian, Cretaceous, and Tertiary for the province of Saskatchewan, Canada. Mapping in support of this dataset was over many years of compiling bedrock data and integrating into this product. The data was created as a file geodatabase feature class and output for public distribution.