Located on the island of Maui in Hawaii, Haleakala National Park is home to a huge shield volcano. The park was established in 1961 by an act of congress. The park’s namesake volcano is responsible for 75% of Maui’s landmass, though it is currently dormant. Park visitors often hike to the volcano’s summit early in the morning to watch the sunrise, and others stay out late into the night to watch the skies. Spectacular hikes and drives wind around the park’s unique geologic and volcanic features, and give visitors a sense of the power of the volcano. Over half of the park is designated wilderness.