Question: Haleakala Trail is now part of a national park covering how many acres?
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