Half spring creek, half freestone — the Allenberry C&R water at Boiling Springs is a beloved, busy, year-round fishery, and the late-August White Fly hatch (Ephoron leukon) is one of the great spectacles in the East, a dusk blizzard of egg-laying duns that turns the river white and the trout silly. Runs warmer than the pure limestoners, so mind the thermometer in high summer.
- Limestone influenced