Ok guys here I go, I have an old man that has been hunting here in West Texas for buried Spanish gold for the last 35 years. As far as I know he has nothing to show for it. He does say he is in possesion of old maps and has seen many glyphs on rocks and other such things, the normal signs that are pictured in some of the treasure hunting books. He has a theory that these gold caches emit some sort of energy or signal at 500Hz. He and another younger fellow also have been doing the dowsing thing, you know the two copper rods held one in each hand. They have also used the Biddle and something called an MFD. I have been trying to be open minded and think outside the box. He said what causes these gold caches to emit a 500Hz signal is that the Earths magnetic field is interacting with the gold. They think I can create an instrument that will lead them right to the gold. I'm trying to be nice but they really want me to do all of the work and spend my money since they only offer a percentage if found! I think I should just fade away but if anyone would like to give an opinion feel free to do so. Thanks everyone and this is a great forum! Wirechief.