The Sam Tung Uk Museum is a cultural and agricultural museum and was set up in a former Hakka walled village. Behind Tsuen Wan is Shin Mun reservoir, a valley that was once home to 10 villages that grew mostly pineapples. The dam that stops the reservoir is called Po Lo Pa, lit. pineapple dam. There were once disputes and fights among the Shing Mun valley dwellers and Tsuen Wan residents during the 18th century, over the levying of taxes for pineapple sales. The reservoir valley also has a disused lead mine, where some of the residents of Tsuen Wan used to work. Behind this is Tai Mo Shan, the tallest hill in Hong Kong.