It was called "Pound the Ground" last year and was run by a different bunch of folks. This year it is being run by some other people. From their website they have added 600 acres to the large tract of land they already had. From the website, 1,000 people detected it last year and the year before there was also a hunt on the grounds with I think another 1,000.
This year they are also doing 1,000 people, assuming enough sign up. It is located near Chazy, NY, which is almost as far north as you can go before running smack dab into Canada. There is not a lot of anything there. Biggest town nearby is Plattsburg, NY or Montreal, Canada.
Chazy sits on a plain overlooking Lake Champlain. Some miles south of there was the Battle of Valcour Island in 1776 and Battle of Plattsburg during the War of 1812.
Check out some youtube videos from people who have gone there before. They did find native stuff, but it most likely won't be like digging a city park. Stuff will be very spread out. I'm thinking of going.
As far as natural coins from the area. Maybe a few. After all, 2,000 detectorists have been over all but the new 600 acres in the recent past. Now up there a lot of the farmers still plow, so that may be an advantage.
It is literally in the middle of nowhere. I have driven through there many, many times in the past to visit my daughter in Montreal. Ausable Chasm is a cool local place to visit and is nearby.
