I've been in, by, and around that old house many times, though I wouldn't recommend going inside it anymore since it is very deteriorated now. Like justgeese said, that house is just above one of the largest Ft Ancient village sites in southern Ohio. That is part of the old Goldcamp Farm and used to be a very beautiful house at one time.
As for gold coins being found there. I was there looking for artifacts one day a few years back and there was a guy there with a metal detector and he was around were the old Trading Post was out by the river when I hear him let out a whoop and I went to see what he had found. He had an 185? Flying Eagle $50 gold coin that was in almost mint condition.
The first picture here is of a nice Stone Disc I found at Goldcamps and you can see the house in the background.
The second picture shows the stand of trees were the foundation of the old Trading Post is and where the $50 gold coin was found. You can also see part of the village on the ridge right out from the trees to the left.