Mount Osutaka
Mount Osutaka is a mountain in Ueno, Gunma Prefecture, Japan. It is high.
The plane crash of Japan Air Lines Flight 123 on 12 August 1985 was initially reported on Mount Osutaka, but later confirmed to be on a ridge near Mount Takamagahara. With the loss of 520 people, it remains the deadliest single-plane accident in world history.