Yosemite Falls, United States

Yosemite Falls descends 739 meters in three sections, claiming the title of North America's tallest waterfall, but its late-summer flow shrinks to a mere 10% of its spring peak at 10 cubic meters per second. Compared to #9 Sutherland Falls, which maintains a steadier volume nearly 40 times higher during dry months, Yosemite's upper fall's 435-meter plunge underscores its seasonal nature. Yet spring thaw can boost its discharge to rival the average power of the world's tallest falls, and even at its lowest, the combined height surpasses Niagara Falls by nearly 200 meters, offering a vertical grandeur unmatched in stature.