Tom_in_CA said:
Del, then you just answered your own self, and contradicted yourself. Those places of yours that "paid off big time", were therefore, by definition, not worked out then . Now were they? Fine then , we're not talking about places that AREN'T worked out. We're talking about places that ARE worked out .
Like our city park,
In the early 80's metal detecting clubs were all around the area, they held monthly meets in the park, they had club hunts in the park. On a nice summer or fall days you could drive by and at a distance it looked more like bee's swarming a clover field. And by the mid 80's they were some detector models that were more than capable of discriminating much of the trash and the silver coins that were looking for now were really only 3" to 4" deep! which were perfect for detectors like the Teknetics 9000 or the Tek Mark-I or the Whites 6000 Di-pro detectors like this poured over the park.
It hasn't stopped there, I've been down there in just recent times and seen some older folks swinging E-trac's and V3i plus my brother has been trying the dig all style with his detectors trying to unmask hidden targets, which hasn't proved to do much either, he has been around the block detecting sense the later 70's. Now retired his been working the park with units like,
Fisher F75
Fisher 1270
Tesoro Tejon
Now, if a person went in with something like an E-trac and was to grid the park off in tiny sections and spent a few hundred hours detecting it I'm sure some good finds would come out of there, but you would have to dig every iffy signal and you would find some fresh dropped stuff.
So, I don't think anybody here is saying that "Worked Out" means there isn't something left behind, its more about getting the few pieces left in areas that large just isn't worth the man hours.
I'm sure if you could take the top 8" of soil off our entire 100 plus acres of park and run it all through a sifter you would find a pretty good pocket full of old coins, but to try and use a detector to sift the entire area isn't practical!
Now, my two brothers and I our still hunting the park, were always trying new ideas and trying to find another wheat penny or another silver dime, but now we've added looking for fresh dropped coins and jewelry, dropping the discrimination and trying for those looked over nickels.
Now, if I were to say that I've worked this park area out! then that would be a joke! or to say that me and my brothers have worked it out would also be a joke! but to say that the parked has been a HOT spot for every detector owner in the area sense detectors have been made is to say, "Its Pretty Well Cleaned Out Of the Old Stuff"
Mark