These people who built the hanging coffin burial place used a method called "releasing the rainbow", that is, hanging down from the top of the mountain with a rope, entering the cave and laying a good foundation. Then the coffin village will be broken down into parts, put down from the top of the mountain and installed in the cave. After death, the body and funerary objects are also put down by the method of "putting rainbows" and put into coffins. Some places in Wushan still have the custom of camping in the cemetery before their death.
Extended data:
Hanging coffin burial has seven forms:
One is the "stake-rack gully type", in which one end of the coffin is placed in a natural cave or rock fissure, and the other end is placed on a stake on a cliff.
The second type is "natural cave type", in which the natural cave is slightly trimmed or filled, and then put into the coffin.
The third type is "manual horizontal excavation", in which a rectangular horizontal niche is excavated manually on the cliff of Linjiang, which is wide enough to accommodate one or two coffins.
The fourth type is "manual excavation", in which a square hole with a width of 1 to 1.5 meters is dug on the cliff near the river, or it is made into a square hole by using a natural hole and put into a coffin.
The fifth type is "cliff pile type", in which 2 or 3 square holes are cut on the cliff near the river, wooden stakes are embedded, and then coffins are placed on it.
The sixth type is "cliff shape", that is, there are protruding or sunken rocks on the cliff near the river. Because of its thickness and high stability, it is also called "rock-like" or "rock crack", in which the coffin is placed.
The seventh type is "rock edge type", which finds a prominent narrow rock edge on the steep cliff by the sea to form a natural platform and put the coffin on it.
People's Network -20 130923 "Approaching Science": Mystery Ⅲ. The mystery of hanging coffins for thousands of years
Baidu Encyclopedia-Three Gorges Hanging Coffin