
Mt. Takahara is a mountain in northern Tochigi prefecture, which  stopped it's volcanic activity about 0.1 million years ago . Valley of the photo is former crater. Obsidian is yielded in Mt. Takahara. At Kenngamine in left part of the photo, a old stone age mine of obsidian has been found . Stone tools made of obsidian yielded in Mt. Takahara are found in many parts of the Kanto area. Minolta X700 NEOPANACROSS100  | |