introduce
The Yihai Alliance Memorial Hall is located in Mianning County. It has folk cultural relics exhibition halls, temporary exhibition halls, academic lecture halls, etc., and preserves many precious cultural relics from the Yihai alliance. There are more than 70 pieces of swords used by the donated army; more than 200 pieces of unrated Red Army cultural relics, etc., have witnessed the legendary history of the mutual unity and progress of the Han and Yi peoples and the major contributions made by ethnic minorities to China.