Challis Volcanics | |
---|---|
Stratigraphic range: Paleogene | |
Type | Formation |
Location | |
Region | Idaho |
Country | United States |
The Challis Volcanics is a geologic formation in Idaho. It preserves fossils dating back to the Paleogene period.
Challis Volcanics | |
---|---|
Stratigraphic range: Paleogene | |
Type | Formation |
Location | |
Region | Idaho |
Country | United States |
The Challis Volcanics is a geologic formation in Idaho. It preserves fossils dating back to the Paleogene period.