Check out the cool use of a portable magnetometer starting about 14:30
J Jolly Mon Hero Member Sep 3, 2012 868 631 Primary Interest: All Treasure Hunting Nov 10, 2020 #1 Amazon Forum Fav 👍 Family Maps of Hinds County, Mississippi, Deluxe Edition - Grab it through Amazon!
Amazon Forum Fav 👍 Family Maps of Hinds County, Mississippi, Deluxe Edition - Grab it through Amazon!