The rapids of Stone Valley in Colton, New York have a certain stair-like repeating quality to them (at least for the 363-ish days/year during which the dam above keeps its spillway gates closed).
Farther along the river, the effect again repeats: stone ledges turn the rushing water into less-metallic slinky.
This isn’t a mere trompe-l’œil where a particular angle makes stair-like shapes appear in the stones and moving water. A view shifted by 90º confirms the structure.
