Niigata prefecture stretches about 240 km along the Sea of Japan from southwest to north east, with a coastal plain between the mountains and the sea.
The towns of Horinouchi and Koide and the villages of Hirokami, Irihirose, Sumon and Yunotani (all from Kitauonuma District) merged to form the city of Uonuma.
Niigata is a source for crude oil, not often found on the Japanese islands.
On November 1, 2004, the towns of Horinouchi and Koide and the villages of Hirokami, Irihirose, Sumon and Yunotani from Kitauonuma District merged to form the city of Uonuma.
Niigata is the principal rice growing region of Japan based on gross output.
Niigata prefecture is known throughout Japan for its quality sake, senbei, and mochi.