Dog Tooth Mountain Railroad's sawmill is devoted almost entirely to making ties.   Long before
the days of fiberboard, the sawdust and bark burner (foreground) is as busy as the mill. 
Although most of Dog Tooth  Mountain Railroad was built from kits or modified kits, the sawmill itself was built from scratch.

This detail shows the rain barrels on the top of the sawmill building catwalk.  Hoses connected to the barrels are
hanging down  inside the mill just in case.  No small fire will ever get to be a big one in there.