National Park Service LogoU.S. Department of the InteriorNational Park ServiceNational Park Service
National Park Service: U.S. Department of the InteriorNational Park Service Arrowhead
 
 
Find a National Park Near You
John Day Fossil Beds National Monument Image of the Thomas Condon Paleontology Center
view map
text size: largest larger normal
printer friendly
John Day Fossil Beds National Monument
Geologic Formations
 
The rock layers of the John Day Fossil Beds spread far beyond the boundaries of the National Monument.
 
Image of a map of Oregon with the geological formations shown in different colors.
The fossil bearing rocks of the John Day basin are wide spread.
 
Image of the John Day Fossil Beds timeline.

Rocks at the fossil beds are stacked up like layers of a cake.Click on the timeline for a larger version.

The oldest layers are on the bottom, the youngest layers are on the top.

 

To learn more about each of these different Formations click on the highlights at the right hand side of the page.

You are exiting the National Park Service website

Thank you for visiting our site.

You will now be redirected to:

We hope your visit was informative and enjoyable.
Image of fossilized alder leaves

Did You Know?
The fossil leaves found at the Painted Hills represent an assemblage of broad-leaf deciduous trees that were growing on the edge of lakes and streams.
Disclaimer Accessibility Privacy Policy FOIA Notices USA.gov

Last Updated: January 13, 2007 at 18:23 MST