After setting some gopher traps, i got to detecting, not much coming out , but in one earea i got three old pop cans spread out in an earea of about 200 sc ft. this kind of can dates from around 1976- 1981 the round tabs fell out of favor , it was definetly transitionary for shure steel sides all gone from the farm chemicals also i found a special export can from the 70,s pull tab, and i nice bullet so far got 7 gopers, but no coins just bulletsand cans & things at the end of the day i got three historic cans .