Today I was walking out in the woods. In many places in the woods around here you can find old stone walls going between the trees. Today by one of these stone walls I found a piece of farm machinery. It was heavily rusted and the rubber tires were flaking. It was ten or fifteen feet wide and would have been nearly impossible to get into the forest and fit between the trees, unless dropped by a helicopter. It must have been left there decades ago and the forest grew up around it. I think it's an automatic seeder.