Earl is correct. According to what the gentleman told me, they scraped out a long trench, with bulldozer's. The top of the stack, he said, is 10' to top of the stack. When I was working for him, the gentleman told about it, HE WAS THERE! So speculation is out the window. After asking him to tell me, many times during the course of my work. He finally did! I still have not checked it out yet. This fellow is a smart individual, living a real nice home, in a nice subdivision. He said it was there, without doubt. That he had checked it out, from year to year. I'll have to acquire a TWIN BOX DEEPSEEKER. Can I assume that a mass of metal that big, could be read easliy from 10'? Thanks for the good responses and help!