Pre-1949 schools taught: Guizhou has 3 things very special. 1. Not 3 feet of level ground. 2. Not 3 days of sunshine. 3. Not 3 days of food. Today, there's poverty alleviation, compulsory free education and built-up infra-structure to attract businesses and tourism. But there is nothing you can do about the weather. However, by tunneling through mountains, you can sell the water to adjacent provinces. That's exactly what they are doing.