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| settlement_type= City | image_symbol= Emblem of Okaya, Nagano.svg | image_map= Okaya in Nagano Prefecture Ja.svg | lat_deg= 36 | lat_min= 03 | lat_sec= 50 | lon_deg= 138 | lon_min= 03 | lon_sec= 09 | region= Chūbu (Kōshin'etsu) | prefecture= Nagano Prefecture | district= | mayor= Ryugo Imai (since September 2007) | area_km2= 85.19 | population= 52,556 | population_as_of= May 1, 2011 | density_km2= 616.93 | tree= Taxus cuspidata | flower= Rhododendron | bird= | city_hall_address= Saiwaichō 8-1, Okaya City, Nagano Prefecture (長野県岡谷市幸町８番１号) | city_hall_postal_code= 394-8510 | website= }} is a city located on Lake Suwa in Nagano Prefecture, Japan. The Tenryū River begins its course in Okaya, flowing from its headwaters in Lake Suwa. ==History== From the Meiji period through the start of the Shōwa period (1868-1930), the Okaya area was one of Japan's largest producers of export-quality silk, due to the introduction of a then new silk-reeling machine from overseas. The city was founded on April 1, 1936. After the World War II, Okaya established itself as a manufacturing city of precision machinery, focusing on producing products such as watches and cameras. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Okaya, Nagano」の詳細全文を読む スポンサード リンク
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