由布岳（ゆふだけ、油布嶽）は、大分県由布市にある標高1,583mの活火山。山体が阿蘇くじゅう国立公園に指定されている。

Mt. Yufu in Yufu City, Oita Prefecture, is one of the 200 famous mountains in Japan that rises behind Yufuin Onsen, one of the representative hot spring areas in Oita Prefecture. Due to its well-proportioned and beautiful mountain range from Mt. Yufu. It is said that Kyuya Fukada regretted for not choosing it as one of the ""100 Famous Mountains of Japan"". The Mt. Yufu peak is a binaural peak consisting of two peaks, the eastern peak and the western peak, and the highest point is the western peak with a first-class triangulation point. From the top of the mountain, you can see the adjacent Mt. Tsurumi (elevation 1,375m) up close. There are courses from the front entrance, the west entrance, and the east entrance, and the most walkable is the front entrance with a bus stop and a large parking lot. The top of the mountain can be circled including the eastern and western peaks, but since there are rocky ridges and collapsed areas, beginners is recommended to make a round trip to the eastern peak, which is relatively safe to climb.

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由布岳（西峰・豊後富士）付近の写真一覧