World Heritage Report
General Management Plan
For information on current or ongoing projects, visit the National Park Service Planning, Environment and Public Comment website.
Did You Know?
The park considered a number of ideas for mitigating the damage that would be done if Threatening Rock fell. Proposed solutions included using dynamite to destroy it, anchoring it to the canyon wall with cables, or clearing out the rock debris behind it. It fell on January 22, 1941.