It's on Linwen Street. The most famous sour soup rice noodle in Wenshan is Laojiekou sour soup rice noodle located in Linwen Street. This shop has a history of more than 40 years and is famous for its unique sour soup flavor and Q-bomb rice noodles. The sour soup rice noodle here is a special sour soup made of sauerkraut and fish bones, and ingredients such as shredded pork, clams and dried beans are added. They are delicious and deeply loved by locals and tourists.