After 8 years the returned. They continued down to 90 feet, finding a layer of Oak logs at every 10 foot interval. Besides the boards, at 40 feet a layer of charcoal was found, at 50 feet a layer of putty, and at 60 feet a layer of coconut fiber.
An amazing finding was a stone at 90 feet with mysterious carvings.
Unfortunately after the stone water began leaking into the pit causing it to flood.
The same thing happened with a pit that was dug parallel the first pit, so the researchers had to abandon their project for 45 years.
At the year 1850 another group of researchers tried their luck at finding the treasure. Although they where also flooded and pumping the water did not help since it was renewed by the sea. Although instead of digging for the treasure the decided to drill for evidence first. At 98 feet the drill went through a spruce platform. Then it encountered 4 inches of Oak and then 22 inches of what was characterized as "metal in pieces""; Next 8 inches of oak, another 22 inches of metal, 4 inches of Oak and another layer of spruce. The conclusion was that they had drilled through 2 casks or chests filled will coins. Upon pulling out the drill they found splinters of Oak and strands of what looked like coconut husk. That was as far as they could reach.
***These researchers returned in 1850 with plans to dig another parallel hole and then tunnel over to the Money Pit. Just like before, as they tunneled over, water began to rush in. They brought in pumps to try to get rid of the water but it was impossible to keep the water out. During the pumping someone noticed that at Smith's Cove during low tide there was water coming OUT of the beach.
This find lead to an amazing discovery - the beach was artificial!***
It turns out that the pit designers had created a drain system, spread over a 145 foot length of beach, which resembled the fingers of a hand. Each finger was a channel dug into the clay under the beach and lined by rocks. The channels were then filled with beach rocks, covered with several inches of eel grass, and then covered by several more inches of coconut fiber. The effect of this filtering system was that the channels remained clear of silt and sand while water was still allowed to flow along them. The fingers met at a point inland where they fed sea water into a sloping channel which eventually joined the Money Pit some 500 feet away. Later investigations showed this underground channel to have been 4 feet wide, 2 1/2 feet high, lined with stone, and meeting the Money Pit between the depths of 95 to 110 feet. In response the researchers tried building a dam to block the water flow, but a storm destroyed it (interesting fact- as the new dam was built the remains of an old dam where found).
In 1897 researchers manage to clear out the Pit down to 111 feet where they actually saw the entrance of the flood tunnel temporarily stopped up with rocks. However, the water worked its way through again and filled the pit. After a try with explosives at the time (which apparently failed) some core samples found at the pit which where out of the ordinary.
At 126 feet, wood was struck and then iron. This material is probably part of the material that fell during the crash of the Pit. On other drillings the wood was encountered at 122 feet and the iron was missed completely indicating that the material may be laying in a haphazard way due to the fall.
Between 130 and 151 feet and also between 160 and 171 feet blue clay was found which consisted of clay, sand, and water. This clay can be used to form a watertight seal and is probably the same "putty"; that was found at the 50 foot level of the Pit.
The major find was in the gap between the putty layers. A cement vault was discovered. The vault itself was 7 feet high with 7 inch thick walls. Inside the vault the drill first struck wood, then a void several inches high and an unknown substance. Next a layer of soft metal was reached, then almost 3 feet of metal pieces, and then more soft metal.
When the drill was brought back up another twist was added to the whole mystery. Attached to the auger was a small piece of sheepskin parchment with the letters "vi"; "ui"; or "wi"; What the parchment is a part of is still in question.
In May of 1899, yet another startling discovery was made. There was a second flood tunnel! This one was located in the South Shore Cove. The designers had been more ingenious and had done more work than previously thought. Though this find certainly strengthened the case that something valuable was buried below it didn't bring anyone closer to actually finding the treasure.
In 1936 Gilbert Hadden, in conjunction with Fred Blair, began a new investigation of the island. Hadden cleared some of the earlier shafts near the Pit and made plans for exploratory drilling the next summer. However, he made two discoveries away from the Pit.
The first was a fragment of a stone bearing inscriptions similar to those found on the inscribed stone discovered at the 90 foot level of the Money Pit. The second discovery was of several old timbers in Smith's Cove. These timbers seem to have been from the original designers due to the fact that they were joined using wooden pins rather than metal. As will be seen later these timbers were only a small part of a much larger construction.
The next treasure hunter was Erwin Hamilton. He began his search in 1938 by clearing out previous shafts and doing some exploratory drilling. In 1939 during drilling two more discoveries were made. The first was the finding of rocks and gravel at 190 feet. According to Hamilton they were foreign and therefore placed there by someone. The second finding came after clearing out an earlier shaft down to 176 feet. At this point a layer of limestone was encountered and drilled through. The drilling brought up Oak splinters. Apparently there was wood BELOW the natural limestone.
Daniel Blankenship, the current searcher, began his quest in 1965. In 1966 he dug out more of the original shaft found by Bob Dunfield in 1965. It turned out that the shaft did go beyond 45 feet. Blankenship found a hand-wrought nail and a washer at 60 feet. At 90 feet he met a layer of rocks in stagnant water. He assumed this was part of the south water tunnel but couldn't explore further because the shaft could not be stopped from caving in.
A pair of wrought-iron scissors were discovered in 1967 buried below the drains at Smith's Cove. It was determined that the scissors were Spanish-American, probably made in Mexico, and they were up to 300 years old. Also found was a heart shaped stone.
Smith's Cove revealed some more secrets in 1970 to Triton Alliance, a group formed by Blankenship to continue the search. While Triton was building a new cofferdam they discovered the remains of what appeared to be the original builders' cofferdam. The findings included several logs 2 feet thick and up to 65 feet long. They were marked every four feet with Roman numerals carved in them and some contained wooden pins or nails. The wood has been carbon dated to 250 years ago.
The western end of the island has also revealed several items. Two wooden structures, along with wrought-iron nails and metal straps were found at the western beach. Nine feet below the beach a pair of leather shoes were unearthed.
The next major discoveries came in 1976 when Triton dug what is known as Borehole 10-X, a 237 foot tube of steel sunk 180 feet northeast of the Money Pit. During the digging several apparently artificial cavities were found down to 230 feet.
A camera lowered down to a bedrock cavity at 230 feet returned some amazing images. At first a severed hand could be seen floating in the water. Later three chests (of the treasure type I would presume) and various tools could be made out. Finally a human body was detected.
After seeing the images, the decision was made to send divers down for a look. Several attempts were made but strong current and poor visibility made it impossible to see anything.
Soon after the hole itself collapsed and has not been reopened.
(First of all for all those who donít like it long sorry for the length of my "speech")
You can see the layer inscription and the stones on the attachments.
By far I think that the most interesting question is what did someone have to hide that he didnít want anyone to find so badly that he built an entire artificial beach for it!
Thoughts are welcome