Later in the decade, he used to strut around St. Marks Place and Second Avenue, longhaired and bearded like any number of hippies, but instead of adorning himself in flowers and beads, he wore a leather jacket, carried a switchblade and peddled manifestos full of cryptic poetry and angry agitprop.
Fluvial landform (Wikipedia) Landforms related to rivers and other watercourses include channel (geography), confluence, cut bank, …