To those of you who are curious about how small of gold can be found with the X-terra 70 HF coils, go to "Search" at the top of this page and bring up Hoover's post of April 25, 2009 and Pvampire's post of July 05, 2009. It appears that it is possible to find gold down to about the size of the torch's flame of the back of a dime, no doubt having relatively mild ground would be a big help too.