Mount Tenpō (天保山, Tenpōzan) located in Minato-ku, Osaka is commonly recognized as Japan's lowest mountain. The definition of a "mountain" used here is any elevation described as a mountain on a topographic map published by the Geographical Survey Institute of Japan, though it is disputed that the mountain lacks credibility because it is not a natural part of the landscape. The mountain's "peak" is 4.53 meters above sea level, and will bear more resemblance to a hill than a mountain to the casual observer.