page_title: Shimōsa Plateau
section_title: Rivers and lakes
hierarchical_section_title: Shimōsa Plateau / Geography / Rivers and lakes
caption_attribution_description: English: Teganuma Park in Ciba Japan 日本語: 手賀沼公園（千葉県我孫子市）
context_page_description: The Shimōsa Plateau is a plateau on the Kantō Plain in central Honshu, Japan. The plateau covers most of northern Chiba Prefecture. The plateau was historically richly agricultural, but in the 20th century the western and central Shimōsa Plateau became one of the major industrial areas of Japan, as well as a large-scale bedroom community of the Tokyo Metropolitan Region. Narita International Airport is located in the center of the Shimōsa Plateau.
context_section_description: The Shimōsa Plateau is crossed by several short, shallow rivers and two small lakes. The Kuriyama River (38.8 kilometres (24.1 mi)) flows eastward from the central area of the plateau east of Narita International Airport to the Pacific Ocean. The shorter Kido River (21.5 kilometres (13.4 mi)) similarly flows eastward and empties into the Pacific Ocean in the city of Sanmu.
  Lake Teganuma originally occupied a large area to the north of the plateau, but has narrowed in modern times due to being sealed off from the Tone River and land reclamation projects. Teganuma historically  covered 10 square kilometres (3.9 sq mi), but after land reclamation now covers 3.7 square kilometres (1.4 sq mi). Lake Inbanuma was created by the natural damming of a small valley in the Shimōsa Plateau, and originally covered 21.3 square kilometres (8.2 sq mi). After land reclamation projects, similar to those carried out on Teganuma, it now covers 13.1 square kilometres (5.1 sq mi).
caption: Lake Teganuma, Abiko
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