Types of Soil Used by the JIA as Yamashita Treasure Sign


The most common method on how the JIA (Japanese Imperial Army) hid their war loots during WW2 (World War II) were “burying them deep under the ground”. According to some historical reports, the JIA even utilized their slaves where they carried the treasures and dug tunnels for them. The most “inexcusable act” committed by the JIA particularly their high-ranking military officials was they killed all those who witnessed the locations of their hidden treasures. So aside from the slaves, they also murdered most of their men before they finally surrendered to the Allied Forces.

So how exactly the JIA buried and covered their treasures?

1. The Treasure Deposit

After digging a certain amount of depth from the ground, they usually create a “chamber” at the end where they store the treasure deposits. This is often the case for large hidden Yamashita deposits.

Small buried deposits usually consists of shallow depths ranging from 1 to 5 feet only. Medium deposits goes around 10 to 15 feet depth while large deposits ranges between 60 to 120 feet deep.

2. Dangerous Traps

Once they piled all the treasure deposits inside the chamber, “booby traps” were setup which gets automatically triggered when any of the items are moved or disturbed. Aside from booby traps, the JIA also used poisonous gas and chemicals as deadly traps.

3. Hard and Thick Concrete

Next to the chamber can be a hard and thick concrete that will not easily break. Some THs call it as the “Japanese Treasure Seal”.

4. Human Sacrifice

Unfortunately, the slaves who worked in burying the treasures were not spared by the JIA. They were shot to their deaths usually after “halfway-through” of covering the hole before the Japanese soldiers took over in filling up the rest. This explains why some THs are able to recover human remains or skeletons on their diggings.

5. Clams and Sea Shells

Clams and sea shells are commonly used buried treasure signs by the JIA. Since it is common to encounter these objects especially deep under the ground, THs must try to distinguish them if they are “actual signs” or just natural. When used as an actual sign, the clams or sea shells are well arranged in some strange manner.

These clams and shells are often encountered as treasure sign either along with the human skeletal remains or after it. On some rare cases, they were also placed on the “final layer” which is near the deposit.

6. Pebbles or River Rocks

The JIA also used pebbles and river rocks as buried treasure signs particularly on deposits hidden on dry places. These objects are often encountered by most THs before the clams, sea shells or human skeletons.

Any curious individuals who discover rocks or pebbles that originally belong to the river on a dry land will surely “draw curiosity” about their existence. Anyone can realize that somebody must have brought them on that particular place for some certain purpose. As for experienced THs, they can easily conclude that these objects are “treasure signs”.

To distinguish pebbles and river rocks, they usually have smooth surfaces and a lot tougher to break as compared to the rocks found on dry lands.

7. Bottles

Bottles are also another common treasure signs used by the JIA. Most THs encounter these objects at a depth of around 3 to 10 feet deep. Although, THs must examine the bottles they found and try to distinguish if they are old or new. Distinguishing old bottles from the new is actually easy. New bottles have clear, fine and smoother surfaces as compared to old bottles which were roughly made.

The common colors of old bottles used by the JIA as buried treasure signs are dark-brown, brown, dark-green, green, dark-red/maroon, blue and clear/colorless.

8. Ammunitions

On some deposited sites, the JIA also used ammunitions as buried treasure signs. They are usually encountered by many THs at shallow depths ranging from “12 inches to 3 feet deep”. However, some of the Japanese soldiers were clever enough to scatter them all over the surface area of the deposit’s burial site. This tends to confuse most THs with EMDs (Electronic Metal Detectors) due to these scattered pieces of metallic objects.

9. Different Types of Soils

And finally, the JIA also utilized different types of soils as treasure signs. Let us have a further discussion about this topic below.

Ground Soil

Different Types of Soil as Japanese Treasure Signs

Soil found in the Philippines consists of several different colors. Due to these varied colors of the soil, the JIA came out with a good idea to utilize them as treasure signs.

Here are the following different colors of soil found in the Philippines:

a. Brown
b. Black
c. Grey
d. Red or Orange
e. White
f. Yellow
g. Violet
h. Pink

So how the JIA used these varied colors of soils as treasure signs?

Back in WW2 specifically during the “near defeat” of the JIA, the Japanese soldiers ends up digging a lot of holes, pits and tunnels which served as their “underground hideouts”. Thus, most treasure burials sites consists of many other dug holes nearby. And due to this, they had access to different properties of soil.

Depending on the availability of the different colors of soil they found, they filled the hole with treasure deposit in a manner of “alternate layers” of soils they acquired. There is actually “no standard order of colors” they followed. However, the final or surface layer is always the original type of soil they dug from the ground of their treasure’s burial spot.

At some point, the JIA often contaminated the inner layers of soil with deadly chemical poison. If a certain individual got exposed into this chemical poison either by “skin contact” or “prolonged inhalation”, the victim will experience itchiness then dizziness. Later effects are paralysis and then death. Many diggers had already fallen victims into this deadly poison and unfortunately they died because there is “no cure”.

Moreover, THs who are aware about this clever method by the JIA in utilizing different properties of soil as treasure signs can confidently confirm that they are digging on the correct spot. Thus, the need for EMDs or Dowsing tools may no longer be necessary.