If you don't have a compass, use your phone compass. During this time, I was holding the compass, so I could write down the twenty-four mountains, so it was much easier to convert the degree. I looked at every window before it got dark. Such a development zone was built on the original mountainous area. We have a karst landform here, many of them are mountains, but in fact, they are more than ten or twenty stories high, and they do not occupy a large area