I am trying to hunt in front of our old 1880s barn, but I have found out after digging a few holes that a long time ago someone had put a layer of med. sized rock and gravel. Some of the rocks were giving off signals that looked like a non-ferrous objects and I was getting confused by them. I found some iron trash and a few old ammo casings. I have a feeling that any really old coins are burried under this layer of rock and gravel. I just got my 6" DD HF coil yesterday and it seems to work a lot better in these really trashy areas. Any advice on how to hunt through rocks like this?
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Hunting through Hot Gravel with the X-70
- Thread starter T-Money
- Start date
coinsh00ter
New member
I'd like to know myself. I hunt some older properties with the type of fill you mention. I call it "slag" fill and have never been able to find anything under it. The rocks remind me almost of lava rocks. Every detector I have ever owned has chattered in this type of ground. I have only found newer clads on top.
Dave in NJ
Dave in NJ
I just know there has to be some old coins or jewelry under the rock because there was a lot of activity here going back to the 1880's. I think my great grandpa dumped all the rock there when they started driving tractors into the barn instead of animals. I also hit a larger cobble layer behind the barn that my grandpa told me was put there by my great grandpa to fill in some low areas and keep the hogs from tearing up the ground. This is very frustrating....:veryangry: I guess I will have to work other areas for now.
robert roy
New member
Too bad you can't get one of those snow plows and scrape the top surface if owner permits, and get to the bottom of things. Pun intended!
BarnacleBill
New member
Things to try.
A. Ground Tracking On.
B. Reduce Sensitivity till it quiets down.
C. Hold the coil higher off of the ground, say 2 to 3 inches to reduce ground response.
D. Swing more slowly and with a smooth consistent speed.
E. Try Stability function.
F. Lower your threshold.
G. Avoid swinging over holes\dips\depressions if possible, the flatter the surface the better.
H. Switch to Prospecting Mode with IM at 5 or above, it will handle bad ground better.
All ground situations are different, you need to try to think how the machine is seeing the ground. Are you working with the machine synergistically to cope with the ground, or making it's work harder?
HH
BarnacleBill
A. Ground Tracking On.
B. Reduce Sensitivity till it quiets down.
C. Hold the coil higher off of the ground, say 2 to 3 inches to reduce ground response.
D. Swing more slowly and with a smooth consistent speed.
E. Try Stability function.
F. Lower your threshold.
G. Avoid swinging over holes\dips\depressions if possible, the flatter the surface the better.
H. Switch to Prospecting Mode with IM at 5 or above, it will handle bad ground better.
All ground situations are different, you need to try to think how the machine is seeing the ground. Are you working with the machine synergistically to cope with the ground, or making it's work harder?
HH
BarnacleBill
Gonehunting
New member
thanks bill I'll try that too... 
GH
GH