Well, the next time he did find something or at least something of interest. I thought his first attempt, the tunnel he dug himself into was in Canada, since being Canadian, that is what you'd expect. Turns out the country of the dig site happened to be in Korea. There was a Japanese treasure associated with this site. I have a couple photos of the next dig. Again all his own map dowsing. Nothing visible on the surface, but underneath were stacked flat rocks without any dirt between them. A different type of soil had been packed around the stones, that contained small bits of rusted iron going down as digging along side. Off the other side a huge carved stone went down, notice the treasure symbols.
By this time it's wearing him out from all the excavation done at night. Trying to get another 2 guys to help, finally thought of getting an archaeologist out there, except the fee was way too much. Next idea he came up with is to look for an investor or backer. (edit: don't really know for sure if any investor is or will be involved).
I'm thinking the marker site probably would only be that, a hidden carved rock to point the way (if the treasure is still there, a few of the Japanese who helped make their markers, went back later to recover stuff).