Wikipedia
Cheonan (Cheonan-si, sometimes spelled Chonan or Ch'onan) is a city located in the northeast corner of South Chungcheong, a province of South Korea, and is 83.6 km south of the capital, Seoul. The average temperature in the city is 12.5C, with a recorded high of 34.2C and a low of -13.4C.
Cheonan has been called "the core city of [the] nation" as it is the gateway to the area around the national capital region and western Chungcheong, as well as the main transportation hub for the national road (Hwy 1, 21), railways, and expressways (IC 1- Gyeongbu Expressway, 25- Honam Expressway). At the Korail station in the downtown center, the Gyeongbu Line crosses north to south, and the Janghang Line extends to the south-west. It is also part of Seoul Subway Line 1 and the KTX. Land routes open in all directions, including north to Seoul, west to Asan, south to Gwangju and Daejeon, and east to Daegu and Busan.