Zion National Park is located in Washington, Kane, and Iron counties counties, in the state of Utah, United States. The park preserves the dramatic geology around the Zion Canyon.
As stated in the foundation document:
The purpose of Zion National Park is to preserve the dramatic geology including Zion Canyon and a labyrinth of deep and brilliantly colored Navajo sandstone canyons formed by extraordinary processes of erosion at the margin of the Colorado Plateau; to safeguard the park’s wilderness character and its wild and scenic river values; to protect evidence of human history; and to provide for scientific research and the enjoyment and enlightenment of the public.