1, "It is the most favorable to find water by mining land." In Cuojikou, which is surrounded by mountains on three sides, groundwater flows to Cuojikou intensively, so more water is produced by drilling wells near Cuojikou.
2. "There is a ditch between two mountains, and there is water in the ditch rock". There is a valley between the two mountains, so it is easy to find water in the rocks on both sides of the valley downstream.
3. "The two ditches intersect, and the spring water is surging". There may be spring water under the mountain mouth where the two ditches meet, so it is more reliable to drill wells here.
4. "Across the mountain pass, there is good water under the mouth." The two mountain mouths are relatively close, and the terrain under the two mountain mouths is flat, so it is easy to pump water when drilling wells at the lock mouth.
5. "The two mountains are isolated, and the water often does not dry." If the rock layer at the bottom of Gushan becomes an aquifuge due to local changes in lithology, the flow of groundwater can be blocked, while water can be produced by drilling wells at the upper reaches of Gushan.
6. "two ditches and one mouth, there is spring water below." The mountains on both sides are very long, and there is a short mountain in the middle. At the intersection of Zhongshan, if there is a permeable layer at the top and an impermeable layer at the bottom, well drilling at a low inclination angle can produce good water.
7. "At the foot of the mountain, there is a large amount of spring water." The mountain is far away and inclined to one end, and groundwater can be found in the aquifer with appropriate topography at its dumping end.
8. "The mountain turns its head and there is water flowing." The lower part of the mountain bay caused by the distortion of the mountain prevents the groundwater from going down the mountain, enriching in the aquifer and drilling wells with water.
9. "The convex mountain is opposite to the concave mountain, and the good water is in the concave room". The shape of one mountain protrudes to the opposite side, and the shape of the other mountain is concave inward, which is just the opposite. In the lower part of Aoshan, the water source is very good, and a lot of water is used to drill wells.
10, "One mountain is prominent, and more wells are drilled". A short mountain protrudes from the middle of the long mountain. When drilling a well in the lower part of the inclined direction of the mountain mouth, water can generally come out.
1 1, "If you come to the bay, the water will not dry." The two bays are opposite to each other. In the middle of the bay, there are submerged or good aquatic plants, which is the performance of water accumulation in the mountains. There are good springs when drilling wells here. 12, "Two mountains meet, and there is spring water flowing under them". Generally, there is a lack of perennial running water between mountains, and flood discharge may occur at the joint in rainy season, and groundwater may be exposed at the joint in dry season to form spring water.
13, "There are many pebbles on the river beach, and underground diving is like an underground river". Although the river has dried up in winter, there is a phreatic flow under the floodplain, which can intercept water storage and drill wells to get water.