- Jan 1, 2013
- 2,653
- 5,418
- Detector(s) used
- Tesoro Vaquero, Whites MXT, Vsat, GMT, 5900Di Pro, Minelab GPX 5000, GPXtreme, 2200SD, Excalibur 1000!
- Primary Interest:
- All Treasure Hunting
Here's a good link 
- http://pubs.usgs.gov/pp/0610/report.pdf
- http://pubs.usgs.gov/pp/0610/report.pdf
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