My friends and i hunted a place like that 5 yrs ago until the owner turned it into a nature preserve. Alas, no more detecting. We covered alot of ground in the 2 yrs. we hunted it, so i feel fortunate we got the opportunity to pretty much get the majority of finds. At the time i was using the coinstrike or cz5 ( can't really remember for sure ). I recovered an indian head every bit 13 inches. My brother came over out of curiosity and checked the 9 inch hole i started. He got nothing but a very weak scratchy sound at times, and said it was junk and i was wasting my time. I unplugged my headphones and scanned the hole and got a weak good tone and he says " no way........it's junk" I said "stick around". I had to fight with a small tree root and some pretty tough clay, and when i had the feathers in hand, my brothers jaw got unhinged. It wasn't enough to sway him into giving up his 6000 di series 2 hip mount, but he was darn well confounded. He even wanted me to tag along with him to check his targets out. I did for a few of them, but told him he's on his own, " i gotta go get the good stuff ", (sianara buddy).
Well, to get to your question........... my experience from this 1890's resort site ( closed in 1972 ) was there was not any modern pull tabs to be bothered with. The pull ring type was present, but not anything to cry about. Most of the litter turned out to be bits and pieces of rusty tin cans, tent eyelets, 22 shells, shotgun shells, lead bits, bottle caps, just the usual early era stuff, ( and not too plentiful in many areas, mostly i'm assuming where tents were pitched in the woods ). I know i was running real low discrimination most of the time, and the ratio of good to bad was great. A good 80% of the finds were 4 to 7 inches deep in soil that was a dirt/clay mixture, some ares slightly hard packed and other areas a little less dense, especially in the woods. Now the 20% of the finds varied from that 7 inch to an average of 9 inches, with a "few" finds in that 10/11 inch range. This was with four different people hunting together most of the time, for two years, four different detectors,( garrett 2500gti,sovereign elite, the 6000 di mentioned, and mine whichever it was ). No one ever detected this place except us. Barber dimes at 2-3 inches, buffalo's 4 or 5 inches, quarters 3 to 6 inches, just never know it varied so much.
Run as little discrim as possible,and head for the wooded areas, old pathways, hillsides especially if water is at the end, old outhouses and surrounding area. Hey, with that old of a place start anywhere.Good luck
