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Seonsan, or Seonsan-eup, is an eup or large village in Gumi City, Gyeongsangbuk-do, South Korea. It has a population of around 20,000 people, and an area of 69 km². There are several historical landmarks in Seonsan, including two Joseon Dynasty schools: Geumo Seowon and the Seonsan hyanggyo. In addition, South Korean national treasure number 130, the five-storied pagoda of Jukjang-dong, is located there.
Seonsan was raised from myeon to eup status in 1979. Since 2004, it has been connected to the Jungbu Naeryuk Expressway.