Yosemite Falls are the highest waterfalls in US with a
height of 2425 ft (740m) divided into two parts, the Upper Yosemite Fall
and the Lower Yosemite Fall, some very inspired names :-). To get to the
base of the falls, follow the short trail (0.5 miles) that starts at
Yosemite Village Center. The top of the Upper Yosemite Fall can be reached
by hiking a 3.5 mile (about 5 km) strenous trail. Like all the other falls
in the park, Yosemite Falls are at their peak in May and early June when
the winter snow melts and the flow of the falls increases. The flow
decreases in July and often even disappears in August and September.