For example, if you look at a map of China, especially a map containing the Korean Peninsula. You will find that the best Feng Shui acupoints in China belong to Henan, China. There are Longteng, Taihang Mountain and Qinling Mountain in the East. Then there are the upper and lower tendons of the Yangtze River and the Yellow River.
This is obvious from a distance. Of course, you need to have a certain basic feng shui ability.