Rock Enclosed Sign – Yamashita Treasure Markers

Aside from burying the Yamashita treasures deep underground or deep inside caves or tunnels, another clever method that the JIA (Japanese Imperial Army) did in hiding most of their precious war loots (back in WW2) were by enclosing them inside rocks. They were able to do this method due to some kind of unknown powerful chemical they use that allows them to break or create holes even from the hardest types of rocks around. It was also due to this type of chemical that allowed them to engraved markers on the surfaces of rocks that are so perfectly etched.

According to some sources online, there are articles accusing the JIA of experimenting chemical weapons which could made them won the war. Fortunately, time wasn’t on their side so their discoveries ends up into failures. Despite of their failures to utilize chemicals for weaponry, they discovered many other basic uses of their chemical experiments such as the substance they use for etching markers on hard surfaces of rocks and enhancing concretes that are not so easy to break apart.

On this post, I would like to feature a marker which is called the “Rock Enclosed Treasure Sign”. Below is an actual photo of a perfect example of this particular marker. I do not own this photo but I asked permission from the owner to use it as an example for this discussion. This is still an ongoing project and I won’t be disclosing any other information regarding about their excavation.

The Treasure is hidden inside the Rock

The meaning of “enclosed” is surrounded, enveloped or covered. A rock enclosed treasure mean is that, the item is inside the body of a rock. Again, as stated above, the JIA used this unknown type of chemical to cut a certain portion on the rock creating a container for the precious items that they intend to hide. Sealing it back undergoes the same process which makes the rock look like nothing happened to it.

As you can see on the image above, the sign consists of a crescent shape similar to the letter C then at the center, there is a dot. To interpret this sign, we need to start from the dot. For my avid readers, I am pretty sure that you already know what a dot stands for. But for the sake of those who are new to this blog, a dot usually stands for the item or deposit.

Next is the C or crescent shape part of the marker. This symbol is telling that the item is enclosed or covered by a rock. Based on my experiences, the item is often right exactly inside the body of the rock.

Common Misinterpretation

The most common misinterpretation of rock enclosed treasure sign especially by the amateurs is that, they dig either on the sides or under the rock. So after working hard digging even at an incredible amount of depths, they will most likely give up not knowing that the deposit isn’t really that hard to recover. My point here is that, being able to interpret signs correctly plays a huge role in successfully recovering the hidden treasure.

Another common misinterpretation for this particular sign is that, its meaning can slightly vary especially when there are other symbols that are marked alongside it. Let’s say for example that you found this rock enclosed symbol engraved on the surface of a one big rock. But on the side of this symbol, there is an arrow pointing to another bigger rock nearby. This means that the item is contained by the other bigger rock being pointed by the arrow marker.

And the third most common misinterpretation of this sign is that, most amateurs does not know how to distinguish natural from man-made authentic signs. This is why after the hard effort of breaking the rock, they simply find nothing inside with huge disappointment.

Using Metal Detectors for Scanning the Rock

The JIA would most likely choose hard types of rocks that aren’t too easy to break apart. Based on my experiences, breaking hard rocks is too tedious and it could take a lot of time especially when you are just using just a hammer and a chisel. There is Dexpan and other similar products but there is a problem or difficulty recently in acquiring any of them.

As a solution, metal detectors or scanners can be used. However, hard types of rocks here in the Philippines are unlike any other rocks in most other countries. They are mostly hot type of rocks that are high in mineral contents particularly irons. This elements is what interferes or gives false signals to most metal detectors. Anyway, there are now several high-end metal detectors available in the market today that are capable of canceling out such interferences.

With a reliable metal detector on your hand, you can just scan the rock to confirm if it is positive or not which can greatly save you an incredible amount of time.

Some Common Questions

Going back to the rock enclosed treasure symbol, some of you may ask “What if there is no dot at the center of the C sign?”

If there is no dot then it means that something is still hidden inside the rock that is not a treasure but perhaps an important clue. I actually have fellow treasure hunters who found clearly sketched treasure maps.

You also have to know that even without the presence of the dot but if there are other signs representing the presence of deposit such as heart, asterisk, question mark, square, rectangle or X then the meaning should remain the same.

“What if the dot is not at the center of the C shape?”

If it happens that the dot is not at the center of the C marker then it means that the item is enclosed in the side of the rock which is a lot easier to be recovered. A chisel and a hammer can actually do the job.

“What is the hidden treasure deposit?”

Based on my experience, deposits inside the rocks are old coins, precious stones, gold bars (small sizes), jewelries and diamonds. And in most cases, it’s a mixtures of these items. Speaking about diamonds, there are rumors that the largest diamond in the world was a part of the Yamashita treasure hidden by the JIA here in the Philippines inside a certain large rock. Rumors says that the rock bear the shape of an egg.


Therefore, if you have found a rock enclosed treasure sign (with no other signs engraved) marked on the surface of the rock then it clearly means that you need to break it apart.

View Comments (68)

  • Good day to you Sir Elmo, at 8 ft below the ground, I had found an oblong rock which has cut on both end measuring 1 meter in length and 2 ft wide. And it is in lined along east/west direction. What does it mean Sir? Thanks and God bless Sir Elmo.

    • The both sides of the oblong rock that you found refers to two sides as well which in my own opinion based on the current situation of your project is that, it is referring to the left and right corners of your excavation or dig site. It is possible that on these two sides of the corners, there might be a sealed entrance of a tunnel or a chamber.

  • Diego Calalo says:

    Kuya Elmo, how I can talk to you personally. I have something to show you, my findings salamat po.

  • Thanks for your reply Sir Elmo.

  • Sir Elmo, I want to talk to you personally about my sites, I hope you can help me us.

  • Anonymous says:

    I bumped into this site few days ago and start reviewing posts from different TH. I would like to share something too Sir. In our farm where there is an old yellow bamboo tree and some believe it's a Chinese bamboo tree. One time my father saw a smoke came out from it but was afraid to get closer to find out what that smoke was. There are people who checked the area with their electronic metal detector and said it's positive that there is something down there. Do you think it's positive?

    • First, you dad seeing strange occurrences on that Yellow bamboo tree seem to indicate the presence of an entity guarding the area. Second, those metal detectors are not good enough for confirmation. You have to know that these electronic equipment are not 100 percent accurate which means that they could just be picking up metal scraps or trash. What's actually needed and the best confirmation are signs or markers.

  • Anonymous says:

    Good afternoon Sir Elmo,

    I would like to ask about what is the meaning of the rock shape like a tooth pointing downward. We dig it for around 8 ft.

    Thank you and God bless.

    • Well, you did the right thing which is to dig at the spot where the tooth is pointing at. You should try to object any objects that you uncovered for some possible markers or engrave signs which could give some clues.

  • Good evening Sir,

    We found a big letter c in the large rock then inside the big c there is a separated big triangle.

    Me and my partner dig under the big rock and we encountered very itchy soil and pile of big rocks. Now, is it possible that there is a Yamashita treasure in the rock?

    I'm so sorry for my English Sir. Thank you

    • That letter C symbol denotes "enclosure" which means, the item is stored inside by a certain object. In most cases, it is stored inside a huge rock.

      The triangle inside that C marker means that the item is hidden in one of the corners of that rock.

      Anyway, it seems that you already started digging under the rock. But, I do suggest that you should knock the rock with a hammer because I think that this is more of an "inside the rock deposit" rather than buried deep under the ground.

      Just try to knock all surfaces of the rock and feel any strange portion that seems to have a hollow inside. Then, break that portion and let's hope for the best.

  • How deep we dig until we found the item Sir? Then, what kind of buried style make the JIA under the big rock?

    • The style about how they buried depends on the succeeding markers or signs that you will encounter along the way.

  • Hello Again sir Elmo,

    We have found a rock with a sign of a big heart shape and inside was engrave with capital letter L with a dot inside, Letter O, V and E with a dot inside, and Y with dot inside, O with dot inside and U with dot inside. All letters enclose in a big heart. Please interpret this for me.

    Before, beside our house during the war used to be a Japanese checkpoint or a barricade with centennial dark plum beside. And when I was young, I used to climb to it and there was a three nails one big nail and two small nails maybe 1 foot apart where I used to hold the big one when I climbed the lumboy tree we call it in our dialect.

    I was wondering then why there was nail there and it was 7 to 8 feet above the ground. And if I could remember and wondered up to now the tail of the nail facing west north, I mean from Japanese barricade beside lumboy tree (imagined and inverted capital letter L) 7 to 8 feet going to west north where we found the big 3 rocks where one with assign of a big heart. And then another turn to the right facing northeast 7 to 8 feet a big old avocado tree and the body was bent facing east to the south. Its like triangle.

    Thank you again please interpret for me.

    • As I can see, the letters combined are "LOVE YOU". In terms of Yamashita symbols, the word love has a meaning of "wealth". So my interpretation to those letters simply confirms that the site is positive. As for the dots, they maybe referring to the number of hidden deposits.

      On the other site which is beside your house, nails were commonly used by the JIA are directional pointers. So I think you just did the right thing where you checked where they are facing at. On that area, you mentioned three big rocks and a big old avocado tree.

      I already have a discussion about the meaning of three rocks that are arrange in triangular formation. So I suggest that you should read that for better explanation. Anyway, what I am more interested is actually the old avocado tree when is bent. I have a strong feeling that the item is underneath it.

  • Hi Sir Elmo, I just want to ask on what chemicals are we going to use and how are we going to break a rock with a cemented hole? The hole is our target but the problem is there are houses near it and they might find out what we are doing. How can we break it without making a noise?

    Thanks in advance Sir Elmo.

    • If you can afford those silent demolition products like Dexpan then it is the one perfect for your situation. Since it is quite hard to acquire such product, I recommend the traditional method of burning the rock to a high temperature.

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