Hi Michael.
Great journals! I'm just catching up to what you have been doing. The forest in Finland is beautiful (and looks a bit like here!) What fun to discover something new! That doesn't happen every day. I appreciated your comment about how you couldn't see them one day and then with your trained eye, you could see them the next. This reminded me of a trip I took with an archeologist in NW Alaska....same thing...I couldn't see house pits anywhere! Then after working with him for a few days, I started seeing them EVERYWHERE. Turns out that I was camping next to one for several days and didn't even know it :) It was fun to imagine what it was like for the people that used to live there and what they were seeing and doing in that very spot, thousands of years ago.
Keep those eyes open and here's to more discoveries!