Question: The Haleakala Trail is located in the national park located on the island of Maui that covers how big of an area?
Sentence (from "Haleakala Trail"): The Haleakalā Trail (also sometimes known as the "Haleakala Bridle Trail") is the historic public access route to Haleakalā Crater and the summit of Haleakalā, which are now part of Haleakalā National Park.
Relevant evidence: Yes