the amazing thing to me, is that it is apparent that it was in use even recently, not only because it is uncovered, but because of the structural riveted steel there, and the galvanized tube off to the right on the chute
is there a resevoir off to the right of the picture that is saved up and then undammed when there is wood to be cut (or flower to be ground)??
it seems like that is the only way to produce enough energy to get anything done..