Yunlin County is a county in western Taiwan. Yunlin County borders the Taiwan Strait to the west, Nantou County to the east, Changhua County to the north at the Zhuoshui River, and Chiayi County to the south at the Beigang River. Yunlin is part of the Chianan Plain, a flat land known for its agriculture. Agricultural products of Yunlin County include pomelo, tea leaves, suan cai, papaya and muskmelon. Yunlin's rivers give it potential for hydroelectricity. Douliu is the largest and capital city of Yunlin. It is the only county on Taiwan main island where no city with the same name exists. Yunlin is one of the least developed counties on the West coast, and suffers from emigration.