Yosemite Falls is a series of three different cascades, the Upper Fall (1430ft/ 435m), the Middle Fall (675ft/ 205m) and the Lower Fall (320ft/ 98m). Combined they are 2425ft/ 738m of falling water. The second tallest falls in North America. Yosemite Falls is primarily fed by melt water from the winter snowpack and therefore the greatest flow is during the Spring months (April-May). It is not uncommon for these falls to almost completely dry up in mid to late summer. Yosemite Falls is very conspicuous and is visible from various places throughout Yosemite Valley. An accessible 1/4 mile path leads to the base of the lower falls.