How Old is the Grand Canyon? Park Service Won't Say

From Public Employees for Environmental Responsibility via YubaNet and our valuable contributor Ron Avitzur:

Grand Canyon National Park is not permitted to give an official estimate of the geologic age of its principal feature, due to pressure from Bush administration appointees. Despite promising a prompt review of its approval for a book claiming the Grand Canyon was created by Noah's flood rather than by geologic forces, more than three years later no review has ever been done and the book remains on sale at the park, according to documents released today by Public Employees for Environmental Responsibility (PEER)....

"As one park geologist said, this is equivalent of Yellowstone National Park selling a book entitled Geysers of Old Faithful: Nostrils of Satan," [PEER Executive Director Jeff] Ruch added, pointing to the fact that previous NPS leadership ignored strong protests from both its own scientists and leading geological societies against the agency approval of the creationist book.

This reminds me of the controversy about Bush's NASA appointee.