Head of Grand Canyon cleared of undisclosed allegations

FLAGSTAFF, Ariz. (AP) — The superintendent of Grand Canyon National Park is returning to work after being cleared in a federal investigation.

Christine Lehnertz had been reassigned while investigators from the Interior Department's Office of Inspector General looked into undisclosed allegations against her.

The deputy director of the National Park Service, Dan Smith, told employees Thursday that the allegations were unfounded and Lehnertz would return soon as superintendent.

A spokeswoman for the Inspector General's office said Friday its investigative report isn't ready for public release and declined to elaborate on the allegations.

Lehnertz has worked for the Park Service for more than a decade.