| Type Formation Region Washington | ||
|  | ||
The Ellensburg Formation is a geologic formation in Washington (state). It preserves fossils dating back to the Neogene period.
References
Ellensburg Formation Wikipedia(Text) CC BY-SA
| Type Formation Region Washington | ||
|  | ||
The Ellensburg Formation is a geologic formation in Washington (state). It preserves fossils dating back to the Neogene period.