Decided to hunt the woods behind my office----80/100 yr old trees---got a 01-46 about 4 feet from an old mulberry tree. Dug down about 8 inches and encountered an 8 inch root. I am almost there as my pinpointer can detect it---Have to bring in the heavy equipment tomorrow or Saturday (Ax,shovel etc.). Any guesses? The numbers hit at 01-46 with an occasional 01-47 solid--no jumping around. I am not familiar with what has been found with these numbers. As soon as I dig it I will post.