CHICAGO (WLS) -- Could the lost Confederate gold treasure that was stolen after the Civil War be buried somewhere in northern Lake Michigan? Two Muskegon treasure hunters strongly believe it is.This year's quest to find the gold has begun for Kevin Dykstra and Frederick J. Monroe. They believe they may have already found a significant piece tothe puzzle, which would put them a step closer to proving their theory true.Dykstra and Monroe made worldwide news in December 2014 when they went public with their claim of finding the holy grail of all Great Lakesshipwrecks - Le Griffon. They say they actually found that shipwreck in 2011 , but chose not to go public because they wanted to research and consultwith maritime experts first.When they decided to go public last December, the duo admitted they weren't searching for lost vessels at the time of making their Griffon claim. Instead, they say they were looking for gold treasure.Thanks to a deathbed confession that's nearly a century old, and four years of intense research done by Dykstra, both explorers believe they're on thebrink of a breakthrough.The breakthrough they were looking for may have happened by accident in April, 2015, and WZZM was on the boat with the treasure hunters when theydove on their discovery for the first time."Sometimes it's not about what you're looking for, it's what you find while you're looking," said Dykstra, who has been treasure hunting alongsideFrederick Monroe for the past several years.The pair began scanning Lake Michigan off the coast of Frankfort as soon as the ice melted, looking for the box car, they claim, has over 2 milliondollars of gold bullion resting inside of it."Forty years of waiting," said Monroe, referring to how long it's been since he first heard about the possibility of gold treasure in the lake. "I'msure this season we'll find it."Dykstra and Monroe believe the lost Confederate gold treasure from the Civil War is somewhere at the bottom of Lake Michigan, thanks to a two-part story that has transcended generations, and was last relayed to Monroe in 1972."I was sitting down and talking to a friend of mine, and all of the sudden he says, 'Fred, you're just the person I want to see with your divingexperience," said Monroe. "My grandfather told me a story that he heard from a lighthouse keeper, who originally heard it during a deathbed confession,that there's 2 million dollars of gold bullion inside a box car that fell off a ferry into Lake Michigan."After four years of research, Dykstra and Monroe revealed in January, a man by the name of George Alexander Abbott, delivered the deathbed confession. Abbott died in Muskegon, Michigan in 1921.At the time of his death, Abbott was a prominent banker in Muskegon, elevating as high as Vice President of Hackley National Bank, under former Muskegon lumber baron, Charles H. Hackley."We believe wholeheartedly that the Confederate gold story is true, and we believe that the box car is out there," said Dykstra.It is fact that in the late 1800s, near Frankfort, box cars were shoved off ferries into Lake Michigan to lighten the load during bad weather.The deathbed confession was only half of the story, according to Monroe. His friend offered up a second tale in 1972."He told me about a boat that has a cabin in it, which has a safe in it, and inside the safe, there was jewelry, gold and silver," added Monroe.Even though this mystery ship, presumably loaded with treasure, was part of the story Monroe heard, the two explorers admit they weren't looking it.But it may be what they found in April."We were searching for the box car when we decided to make one final pass and head out towards deeper water," said Dykstra.All of the sudden, a large image appeared on their sonar. It looked like a ship sitting upright on the lake bottom."Kevin got suited up," said Monroe.Curiosity triggered an immediate investigation of what this large object could be. The water temperature was a frigid 37 degrees, but Kevin Dykstraand his brother, Albert, threw on their dive gear and prepared to descend to the deep."Rather than aborting the effort, we decided to go through with it," said Dykstra.The two entered the water, and their 120-foot dive to the bottom was underway.As Kevin worked his way down the dive rope, he says a perfectly preserved vessel came into view.He says it didn't take long to determine that it was a tug boat, and it was roughly 70 feet in length."I was actually hovering over the bow of the ship, and when I looked down, I could see the windless very clear," said Dykstra, recalling his initialinvestigation of the shipwreck. "Just back from the winch, I came across the mast which was sticking straight up."Just beyond the mast was a hatch cover on the deck of the vessel that somehow didn't pop off the boat, due to pressurization, while it sank. It was still completely intact."To the left of the hatch cover was a very pronounced anchor," Dykstra said, while smiling, knowing that since the anchor was still attached to thisship, he was likely exploring a previously undiscovered wreck."I moved back towards the back of the ship when I came across the pilot house, which was still perfectly intact," said Dykstra. "The steering wheelwas still in place."