It’s Labor Day, so it’s time for a walk in the park. I shared Dark Hollow Falls with many weekenders; the horse trail back from Fisher’s Gap was much quieter. I made the acquaintance of White Snakeroot (Ageratina altissima), which popped up all over the place. Why have I not noticed this flower before? I also found a little patch of Northern Maidenhair Fern (Adiantum pedatum). Both IDs resisted efforts to key them out; thanks, iNaturalist! About 4 miles in the loop, 215 meters of elevation change, a leisurely 3:10 for the circuit.