You may wonder why dead trees and fallen logs are not removed, why
streams are not dammed for swimming, and why certain plants and animals
are not brought into the park and others removed.
The answer is in the fundamental policy of the National Park Service to
maintain the National Parks in their natural state. The landscape
scars—remnants of roads and fences, and grazed-over land—will disappear
in time. The forests will come back to cover the farmlands, and in its
own way the wildlife will balance and adjust to this forest ecology.
These are the things you see taking place in your National Parks all
over the country.
And so we ask you not to disturb the flowers or trees in any way, and
not to collect rock specimens. You can help to protect the wildlife by
driving carefully. Hunting is prohibited anywhere in the park.