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North Dakota, Montana

Hell Creek Fossil Country, near Marmarth

Fossil site Documented sitePermission required

What you could find

Reported finds from this ground.

FossilsFossils
Petrified woodPetrified wood

Also reported: turtle.

Photos via Wikimedia Commons: Partonez (CC BY-SA 4.0), Jon Sullivan (Public domain).

Why this spot

Cretaceous Hell Creek Formation

Famous latest Cretaceous dinosaur beds; access is tightly controlled.

Keep exploring nearby

More spots in this area.

Check access and collecting rules for each site.