This post isn't meant to dispute depth or anything but My question is regarding recovery. No I personally recover most of my coin and jewelery finds in the top 4". That said i try to keep my hole size to no more than 4" wide max. Most of the time I only leave a very shallow 2" wide tamped earth divot. Thus my complaint level from park employees and grounds keepers is kept to a minimum. I read people saying they're digging holes of 12"-14" and my first thought is WTF. How big around does your hole get ? What are you using to dig these fox holes ? Is it worth it to spend an hour to dig on 14" hole for a barber dime when three or four smaller holes at a different locale could be dug for almost any kind of coin or jewelery ? what do you say to the grounds keepers at these parks when they walk up on you while you head and shoulders deep in a hole with only your feet sticking out ?

I do believe hunting in all metal mode can reach great depths, especially if your willing to dig all targets even the phantoms of long ago evaporated iron deposits, But why ? when with just a little research, one can reveal a multitude of as yet still unsearched sites that will yield many of the same variety of coins within the top 4" ?