New York Times: MOUNTAIN LAUREL, tufted with pink blooms each spring, and leathery emerald rhododendron line the Tucquan Glen, a steep hollow in southern Lancaster County, Pa. The Tucquan Creek, home to towering tulip poplar and oak trees and the occasional red fox, rushes over natural rock dams and plunges into secluded swimming holes before it meets the Susquehanna River and continues to the Chesapeake Bay.
I know this creek, the way it tastes and sounds, because I grew up with it, playing in the ferns and...