Because there are stones left over, more than one meter long, they are used as fences for building vegetable gardens. According to the inquiry of personal library.

1. Mintetang's tea farm was once called "Caoguodi" because there are stones left over here, which are one meter long and used as fences for building vegetable gardens.

2. There are still weeds and fruits in the tea field of Mintetang, which attracted five families to come here, and finally Mintetang became five families composed of these five families.