Arch Trail Introduction

View of the Clarno Palisades from the Arch Trail

NPS Photo

Quick Facts

Amenities

2 listed

Pets Allowed, Scenic View/Photo Spot

The Clarno Unit is an underrated yet incredibly important unit of the Monument, since it preserves one of the lushest and most diverse chapters in Oregon’s ancient history. The Clarno Palisades may not be as visually stimulating as the Painted Hills or Sheep Rock, but Clarno is the only unit in the monument where real fossils are easily viewable along the trail in their original resting place! As you continue towards the base of the Palisades, look out for any leaf or vine imprints on the boulders along the trail. We strongly encourage you to trace these fossil imprints with your fingers, or even sketch them in a journal to reflect on your visit to the Clarno Unit long after you leave.