| Copenhagen Formation | |
| Type: | Geologic formation |
| Age: | Ordovician |
| Region: | Nevada |
| Country: | United States |
| Underlies: | Eureka Quartzite |
| Overlies: | Pogonip Group, Antelope Valley Limestone |
| Thickness: | 350feet |
The Copenhagen Formation is a geologic formation in Nevada.
Areas it is found include the Antelope Valley region of Eureka County and Nye County.
It preserves fossils dating back to the Ordovician period.