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The Shida Gunga ruins (志太郡衙跡, Shida-gunga-ato) is an archaeological site containing the ruins of the Nara to early Heian period government administrative complex for Shiga District , Suruga Province, located in the Minamisurugadai neighborhood of the city of Fujieda, Shizuoka in the Tōkai region of Japan. The site was designated a National Historic Site of Japan in 1980.