Georgian Bay Formation
| Georgian Bay Formation | |
|---|---|
| Stratigraphic range: Upper Ordovician (upper Maysvillian-lower Richmondian) | |
| Type | Formation |
| Underlies | |
| Overlies | Blue Mountain Formation |
| Location | |
| Region | Michigan, Ontario |
| Country | United States, Canada |
The Georgian Bay Formation is a geologic formation in Michigan and Ontario. It preserves fossils dating back to the Ordovician period. The type locality of the formation is on East Meaford Creek (previously called Workman Creek), south shore of Nottawasaga Bay, Georgian Bay.