Picket Wire Canyonlands Tracksite (4,403′), Eastern Plains

Picket Wire (Purgatoire) Canyonlands, in the Comanche National Grasslands, is home to the largest dinosaur track site in North America. 150 million years ago this area was part of a large shallow lake and was teaming with Brontosaurs and Allosaurs. As these massive beasts plodded along the muddy edge of this lake, they left their footprints in the mud, which were eventually buried and turned to stone. Today, over 1,300 of these footprints, extending a 1/4 mile, are exposed at the Picket Wire Canyonlands dinosaur track site.

StatsRoute DescriptionDirectionsNotes

Trailhead: Withers Canyon
Round trip: 10.8 miles / 17.4 km
Elevation: 4,403′ -4,153′ (-250′)/ 1,342m-1,265m (-77m)

There are no navigation issues with the trail. The reason for the difficulty rating is the distance.

Starting at the Withers Canyon Trailhead, the trail descends 250 feet into the canyons. Along the way you will encounter many ruins including the Dolores Mission and Cemetery. Many rocks above the trail have centuries old petroglyphs left behind by nomadic tribes.

The summer heat is extreme and should be avoided

Ranger led vehicle access can be arranged in advance during certain times. Vehicle access does not traverse same trail.

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