4Visiting Yosemite National Park Over 3.5 million people visit Yosemite National Park each year.There is $20 per car fee to enter the park.This fee is good for unlimited entry for 7 days.
5Geological FormationYosemite Valley was formed when the Sierra Nevada Mountains were thrust from the ocean’s floor about 500 million years ago.The Merced River has cut canyons as it has flowed west through the Yosemite region.Glaciers cut even deeper and also widened the canyons.When the glaciers thawed, parts of the canyons broke off, leaving sheered cliffs. Creeks and rivers flow over these sheers, making beautiful waterfalls like Yosemite Falls.Sediment from tributary rivers and creeks eventually filled in Yosemite Lake, producing Yosemite Valley.
6The Merced River begins in Yosemite National Park and flows west across central California. The Tuolumne River begins north of the Merced River, flows west across Yosemite, and through the San Joaquin Valley.Tuolumne RiverMerced River
7Human Inhabitants The First Inhabitants: Gold Miners take over in The Awaneechee IndiansGold Miners take over in1851
8Types of Environments in Yosemite The park has an elevation range from 2,000 to 13,123 feet and contains five major vegetation zones: chaparral/oak woodland, lower montane, upper montane, subalpine and alpine.
9Unique Soil Types Yield Rare Plant Species Three-bract OnionSpecies Threatened by vehiclesChaparral or lower montane habitatAllium tribracteatumSlender stemmed monkeyflowerLower montane coniferous forestoften in burned or disturbed areasThreatened by logging and invasive speciesMimulus gracilipes9
10The Beginning of Yosemite National Park In 1864, Abraham Lincoln signed the Yosemite Grant to set aside Yosemite Valley and the Mariposa Grove of Redwoods as a state of California supervised public reserve.
111n 1890, John Muir and Robert Underwood Johnson, editor of Century magazine, persuaded Congress into preserving the highlands of Yosemite as a national park. They wanted to protect the highlands from grazing and timber harvesting.John Muir and a parkranger at Yosemite.
12John Muir and Teddy Roosevelt in 1903 at Glacier Point in Yosemite National Park. Both men were instrumental in the establishment of the National Parks System to which Yosemite belongs.
14Yosemite National Park occupies roughly 761,260 acres.
15Fire Management in Yosemite Fires were suppressed for many years.A “let burn” policy and prescribed burning are used these days.Forest fires help clear dead vegetation, expose mineral soil, open up canopy for sunlight to reach ground, recycle nutrients, and help control disease.Evidence of a fire started by lightning in 1990 is still visible.
16Animal Management in Yosemite There are 300 species of vertebrates in the borders of Yosemite National Park.85 are native species.Black bears have required the most management.Incidents involving bears and humans have decreased 90% in recent years.
17Other Animals9 of 17 species of bats native to Yosemite are on the Federal or California Species of Concern List.Great gray owls live in an isolated population in Yosemite. The next nearest population is hundreds of miles away.
18Other Rare Animals in Yosemite Willow flycatcher wolverineSierra Nevadared fox