The Bōsō Peninsula is defined by the Pacific Ocean to its east and south, Tokyo Bay to the west, and the
Edo and
Tone rivers to the north.
Mount Atago in
Minamibōsō and
Kamogawa is the highest point on the peninsula with an altitude of . From south to north the Bōsō Hill Range gives way to the
Shimōsa Plateau, which covers much of the area of northern Chiba Prefecture, and ends in the lower areas around the
Tone River. The northern and western parts of the Bōsō Peninsula are highly urbanized. The
Shimōsa Plateau and the coastal lowlands and interior river valleys are chiefly used for
rice cultivation. The western coast of the peninsula is home to the
Keiyō Industrial Zone, which ranges from
Urayasu on the border of Tokyo in the northwest of the peninsula to
Futtsu to the south. The
Tokyo Bay Aqua-Line, a
bridge-
tunnel across Tokyo Bay, connects Kisarazu with the city of
Kawasaki in
Kanagawa Prefecture. The northeast of the peninsula is home to
Suigo-Tsukuba Quasi-National Park, which spans across both
Ibaraki and Chiba prefectures, and much of the remainder of the eastern coast of the peninsula is designated as
Minami Bōsō Quasi-National Park. ==Etymology==