Usan-do ( Korean : 雨傘도 , 于山島 ) is a historical name for an island in the Sea of Japan described in Korean records. It was part of the ancient state of Usan-guk , but its exact identity is disputed. It may refer to:

• Jukdo , a Korean island 4 km east of Ulleungdo.
• The Liancourt Rocks , a disputed group of islets now known as Dokdo in Korea and Takeshima in Japan.

Old Korean maps of Usan-do [ edit ]

• Usan-do
• 
  Joseon map (1530)
• 
  Joseon map (1530): Ulleungdo ( 鬱陵島 ) and Usando ( 于山島 )
• 
  Kim Jeong-ho " Daedongyeojido " (1861): Ulleungdo ( 鬱陵島 ) and Usando ( 于山 )
• 
  Kim Jeong-ho "Daedongyeojido" (1861): East of Ulleungdo ( 鬱陵島 ) and Usando ( 于山 )
• 
  A map by the Korean Empire (1899): Ulleungdo ( 鬱陵島 ) and Usan ( 于山 ) as Jukdo
• 
  Aerial photograph of Jukdo Island (for reference)

See also [ edit ]

• Lee Kyu-Won

Wikimedia Commons has media related to Usan Island .