About the place
Ōno (大野郡?, Ōno-gun) is a district located in Gifu Prefecture, Japan.The district is in a mountainous region near the geographic centre of Japan. Prior to February 1, 2005, the district comprised seven small communities, but on that day six of them merged into the expanded city of Takayama. Ōno district now contains only the village of Shirakawa, which is declining to merge with any municipality.