Gangwon-do is a province of South Korea. The capital is Chuncheon. Before Korea was divided in 1945, Gangwon and its North Korean half Kangwŏn were a single province. Gangwon-do is in the northeastern corner of South Korea. On the north it borders North Korea. It has a long coast along the Sea of Japan to the east. On the west it borders Gyeonggi-do. This is the province with the largest population in South Korea. In contrast most of Gangwon-do is made up of mountains and forests. The mountains get a good deal of snow in the winter. They are home to a number of popular ski resorts.