USAGE INFORMATION:View Usage Information
Multimedia credited to NPS without any copyright symbol are public domain. Multimedia credited with a copyright symbol (indicating that the creator may maintain rights to the work) or credited to any entity other than NPS must not be presumed to be public domain; contact the host park or program to ascertain who owns the material.
« Hide Usage Information
This film gives an overview of the geological forces that shaped the canyon as it is seen today.