There have been 2600 national parks in the world since America built the first one in 1872. It is very important for protecting resources, environment, ecology and geological scene. The development of geologic tourism and the protection of geologic environment were carried out at the same time, which had got obvious effect, especially in America. Compared with America, China has lots of problems in protecting geological environment. In this paper, the authors demonstrate some major properties of geologic to...