Title: May On-the-Rocks Field Trip/Bike Adventure to the Purgatoire River Dinosaur Trackway
Publication: The Outcrop, October 2002, p. 34
Some members of the hardy group that survived the 12 mile bike trek to the dinosaur tracksite.
Sandra Mark, On the Rocks coordinator, enters the steep-sided Picketwire Canyon.
Sauropod tracks in the Morrison Formation near the Purgatoire River south of La Junta.