Within the boundaries of Yosemite flow the headwaters and significant stream reaches of the Tuolumne and Merced Rivers, both of which are tributaries of the San Joaquin River basin.
People Also Ask
Is your water safe to drink? Our water is perfectly safe to drink, bath and swim in, but we recommend that you bring bottled water for drinking, due to the fact that our water has a high mineral content.
Source of the FallsYosemite Creek, which flows over this waterfall, is fed entirely by snow melt. At its peak in late spring, 2,400 gallons per second can flow over the lip of the upper fall. Yosemite Falls usually runs dry by late summer.
Yosemite's largest waterfalls flow from October or November through July, but tend to peak in April and May and into June, with some falls (including the park's signature Yosemite Falls) running dry by late summer.
Precipitation falls on Yosemite as rain or snow, some of which immediately runs into lakes and rivers, flowing over Yosemite's spectacular and through magnificent river canyons. Some is stored in snowpack or groundwater, used by plants and trees, or evaporates back into the atmosphere only to fall elsewhere.
Yosemite Falls is ten times taller than Niagara Falls. It is nearly twice as tall as the Empire State Building. If it were a building it would have 200 stories.
Yosemite National Park offers a range of swimming opportunities—from rivers and lakes to our family-friendly pools, which are the only swimming places in Yosemite with lifeguards. River and lake swimming is at-your-own-risk. Life jackets are strongly recommended—especially for children.
By late summer in all but the wettest of years, the granite lined watershed that feeds Yosemite Creek and Yosemite Falls has shed all of the snowpack from the winter and the falls dwindle to nothing but a trickle. It may in fact be completely dry for months until the rains come again.
Especially noticeable at the waterfalls is the brown tea color of the water due to humic acids that originate from decaying vegetation in the headwaters.
The waterfall grand enough to be called Yosemite Fall surprises many with its ephemeral nature. The roaring spring waters subside in late summer and fall to a bare trickle before being replenished by snow and rainfall during the winter.
Are there alcohol or marijuana restrictions? Alcoholic beverages are not provided, however some adults bring beer or wine to share with the group in the evenings. Alcoholic beverages are not permitted for those under 21 years of age.
No matter which season you are planning to visit Yosemite, layers will be important. During the spring, summer, or fall, we recommend wearing a base of shorts and a tank top or t-shirt then layering from there. Cargo pants that have removable sections are great.
Lodging options inside Yosemite National Park are managed by Yosemite Hospitality, and range from simple tent cabins at the High Sierra Camps to deluxe rooms at The Ahwahnee. Reservations are available 366 days in advance and are strongly recommended, especially from spring through fall and during holidays.
The Upper Yosemite Fall drops 1,430 feet (436 metres) and the Lower 320 feet (98 metres), with a series of cascades between; the total drop is 2,425 feet (740 metres), creating one of the world's highest cataracts, the highest in North America.
Horsetail Fall is a small, ephemeral waterfall that flows over the eastern edge of El Capitan in Yosemite Valley. For two weeks in February, the setting sun striking the waterfall creates a deep orange glow.