No matter how or when you enter the Zion Canyon section of Zion National Park in southwestern Utah, you will be dazzled by its rapidly changing colors and forms. Zion National Park was first set aside in 1908 as Mukuntuweap National Monument to preserve dramatic canyons and cliffs caused by erosive forces.
K.C. DenDooven Books


In Hawai'i Volcanoes National Park, primal forces of volcanism generate a dynamic cycle of destruction and renewal. Here, on two of the most active volcanoes on Earth, lava flows erase verdant landscapes. This is a natural catastrophe followed by new life. Hawai'i Volcanoes National Park was established in 1916 on the island of Hawai'i to protect the geologic, biologic, and cultural resources on Kilauea and Mauna Loa, Hawai'i's two most active volcanoes.