Claim: Haleakalā is the smallest mountain on the Island of Hawai'i.
Evidence: Haleakalā (/ˌhɑːliˌɑːkəˈlɑː/; Hawaiian: [ˈhɐlɛˈjɐkəˈlaː), or the East Maui Volcano, is a massive shield volcano that forms more than 75% of the Hawaiian Island of Maui.