Comanche National Grassland
La Junta, Colorado – Point of Geological Interest #F21
The largest documented dinosaur tracksite in North America, this remote 1/4-mile stretch along the banks of the Purgatoire River in southeastern Colorado contains over 1,300 visible tracks in 100 separate trackways. Access to the Purgatoire Valley Dinosaur Tracksite Area is extremely limited. The Forest Service offers guided auto tours into the Picketwire Canyonlands. Reservations for the guided auto tours must be made months in advance due to the tour’s popularity.
On the web: Picketwire Canyonlands Auto Tour