"East Broad Top Puzzles: Aughwick Mill Race," m, p. Keller, "The Reluctant Railroad: The EBT's Rocky Ridge Branch," m, p. Myers, "New Life at the North End: The Mount Union Connecting Railroad," p. Stauffer, "Broad Top 101 [timber transfer and coal transfer plant]."
Abbreviations denote the following features: g (graph), m (map), p (photograph), and s (sketch or non-photographic illustration).
