Down N Dirty Diggers Mikes Metal Detectors:
IN metal detecting clubs

Then she radios back and says, Cool, I'm on my way. The oldest type is the BFO (Beat Frequency Oscilator). Old abandoned churches and schoolhouses are good places to start. Remember, the higher the coil is above the surface the more depth you will lose. Also inquire about bike and horse riding trails in your area. Any place that someone would spread a towel would be a spot to loose something in the sand. Mikes Metal Detectors http://groups.msn.com/DownnDirtyDiggers/welcomepage ...Down N Dirty Diggers ...Juniper Ridge Fire Opal Mine is another mine that allows the general public to search for opals on a fee bases.