http://www.angelfire.com/trek/forthetruth/filmore.html
The Man Behind the Finding of These Ancient Brass Plates
The plates pictured here were found while searching the under ground shaft, which was built around 450 ad. It's contents seem to be protected by a series of "booby traps", as a number of people have mysteriously been killed trying to enter the tunnel. In the early 1960's, Jose Davila, (who was able to discern what the glyphs said), took a couple of BYU archeology students to this location, where they tried lowering someone down the hole. Here is the story.
Del Allgood owned a small rock shop in Fillmore UT. He was a talented man and could do the most amazing things with an old twisted up piece of wood or a pile of ordinary rocks. If he wasn't busy creating his works of art he was in the hill's looking for more recourses to build his art with. It was during one of these excursions that he stumbled upon the mysterious symbol site in the hills above Fillmore Utah. Even though he wasn't the first to discover them, he did take an unusual interest in them in trying to figure out their meaning. Del worked at the local gas station to help subsidize his income. He loved talking to the customers about the symbols and the Spanish mines in the mountains. One day a man from Salt Lake City stopped by for a fill up. As usual Del started talking about the symbols and how they almost looked like Egyptian hieroglyphs. In an unusual turn of fate, the customer knew a professional treasure hunter named Jose Davila, who could read Egyptian. Jose is from Mexico but just happened to be in Salt Lake City that week.