Gyeongsangbuk-do lies in the southeastern region of the Korean peninsula and is bounded on the east by East Sea, on the north by Gangwon-do and Chungcheongbuk-do, on the west by Chungcheongbuk-do and Jeollabuk-do, and on the south by Gyeongsangnam-do and Ulsan. Gyeongsangbuk-do is 170-430 km away from Seoul. The extensive transportation networks by air, rapid transit railways, and expressways for cars enable people to reach most regions of South Korea in 50 minutes to 3 hours. Gyeongsangbuk-do is located between 35° 34E and 37° 33E north latitude, approximately the same location as Washington D.C. (USA), Tokyo (Japan), Lanzhou (China), Teheran (Iran), and Lisbon (Portugal).