Answer the following question: The Sierra Estrella (O'odham: Komadk Maricopa: Vii Lyxa Yavapai: Wi:kchasa) is a mountain range located southwest of Phoenix Arizona. Much of the range falls within the Gila River Indian Reservation but 14400 acres (5800 ha) of BLM land is protected as the Sierra Estrella Wilderness. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
Answer:
Natural Place