Grant Marsh was the captain of the Far West steamboat that was making its way up the Bighorn River to resupply General George Custer in his fight against the Sioux Indians at the Battle of Little Bighorn in 1876. But experts say that the Far West was carrying more than just guns and ammo. According to historians, Captain Marsh had roughly $375,000 worth of gold bars he had collected from worried gold miners who didn't want to fall victim to Native American attacks aboard his vessel. But in light of General Custer's defeat, Captain Marsh was forced to shift gears and help transport injured men away from the battlefield. The only way to do so without the ship sinking from all of the weight, as it turns out, was to dump the gold into the Bighorn River. To this day, the gold hasn't been found.