First-ever adult Tyrannosaurus rex trackway discovered in North Dakota badlands
Updated on: September 10, 2026 / 10:38 AM CDT / CBS Minnesota
TL;DR
- The first trackway of a full-grown Tyrannosaurus rex has been discovered in southwestern North Dakota.
- The trackway consists of four connected footprints, each about 3 feet long, found on U.S. Forest Service land.
- Researchers estimate the T. rex was walking at 3.5 to 4.5 mph, despite weighing over seven tons.
- The discovery provides rare behavioral insights, unlike isolated footprint finds.
- The tracks date to approximately 66.5 million years ago, near the end of the Cretaceous period.
- Three of the four footprints are scheduled to be airlifted to the Denver Museum of Nature & Science.