Groups Ask for Extension on Comment Period for Grand Canyon "Natural Quiet" Definition
![](https://www.nationalparkstraveler.org/sites/default/files/styles/npt_square2/public/default_images/npt_icons_0.png?itok=8J64sZS9)
A coalition of groups has asked that the public comment period on how "natural quiet" is defined at Grand Canyon National Park be extended by 30 days beyond the current May 9 deadline.
![image/jpeg Image icon](/modules/file/icons/image-x-generic.png)
![image/jpeg Image icon](/modules/file/icons/image-x-generic.png)
![image/jpeg Image icon](/modules/file/icons/image-x-generic.png)