Angel Island (California)
Angel Island is an island in San Francisco Bay offering expansive 360° views of the San Francisco skyline, the Marin County Headlands and Mount Tamalpais. The entire island is included within Angel Island State Park and is administered by California State Parks, Angel Island is the second largest island in area of the San Francisco Bay. The island is so large that on a day and Napa can be seen from the north side of the island. The highest point on the island, almost exactly at its center, is Mount Caroline Livermore at a height of 788 feet, the island is separated from the mainland of Marin County by Raccoon Strait, the depth of the water approximately 90 feet. The United States Census Bureau reported an area of 3.107 km². Until about ten years ago, Angel Island was connected to the mainland. From about two years ago the island was a fishing and hunting site for Coast Miwok Native Americans. Similar evidence of Native American settlement is found on the mainland of the Tiburon Peninsula upon Ring Mountain.
In 1775, the Spanish naval vessel San Carlos made the first European entry to the San Francisco Bay under the command of Juan de Ayala, Ayala anchored off Angel Island, and gave it its modern name, the bay where he anchored is now known as Ayala Cove. In his book Two Years Before the Mast, published in 1840, Richard Henry Dana, like much of the California coast, Angel Island was subsequently used for cattle ranching. In 1863, during the American Civil War, the U. S. Army was concerned about Confederate naval raiders attacking San Francisco and it decided to construct artillery batteries on Angel Island, first at Stuart Point and Point Knox. Col. René Edward De Russy was the Chief Engineer, James Terry Gardiner was the engineer tasked with designing and supervising the work. The Army established a camp on the island, and it became an infantry garrison during the US campaigns against Native American peoples in the West. In the 19th century, the designated the entire island as Fort McDowell and developed further facilities there.
A quarantine station was opened in Ayala Cove in 1891, during the Spanish–American War the island served as a discharge depot for returning troops. It continued to serve as a transit station throughout the first half of the 20th century, at the end of World War I the disembarkation center was commanded by William P. Burnham, who had commanded the 82nd Division in France during the war. In 1938, hearings concerning charges of membership in a political party against labor leader Harry Bridges were held on Angel Island before Dean James Landis of Harvard Law School. After eleven weeks of testimony that filled nearly 8,500 pages, the decision was accepted by the United States Department of Labor and Bridges was freed
Death Valley National Park
Death Valley National Park is a national park in the United States. Straddling the border of California and Nevada, located east of the Sierra Nevada, the park protects the northwest corner of the Mojave Desert and contains a diverse desert environment of salt-flats, sand dunes, valleys and mountains. It is the largest national park in the lower 48 states and has declared an International Biosphere Reserve. Approximately 91% of the park is a wilderness area. It is the hottest and lowest of the parks in the United States. The second-lowest point in the Western Hemisphere is in Badwater Basin, the park is home to many species of plants and animals that have adapted to this harsh desert environment. Some examples include creosote bush, bighorn sheep and the Death Valley pupfish, several short-lived boom towns sprang up during the late 19th and early 20th centuries to mine gold and silver. The only long-term profitable ore to be mined was borax, which was transported out of the valley with twenty-mule teams, the valley became the subject of books, radio programs, television series, and movies.
Tourism blossomed in the 1920s, when resorts were built around Stovepipe Wells, Death Valley National Monument was declared in 1933 and the park was substantially expanded and became a national park in 1994. The natural environment of the area has been shaped largely by its geology, the valley itself is actually a graben. The oldest rocks are metamorphosed and at least 1.7 billion years old. Ancient, shallow seas deposited marine sediments until rifting opened the Pacific Ocean, additional sedimentation occurred until a subduction zone formed off the coast. This uplifted the region out of the sea and created a line of volcanoes, the crust started to pull apart, creating the current Basin and Range landform. Valleys filled with sediment and, during the wet times of glacial periods, with lakes, in 2013, Death Valley National Park was designated as a dark sky park by the International Dark-Sky Association. There are two valleys in the park, Death Valley and Panamint Valley. Both of these valleys were formed within the last few million years, the result of this shearing action is additional extension in the central part of Death Valley which causes a slight widening and more subsidence there.
Uplift of surrounding mountain ranges and subsidence of the floor are both occurring. The uplift on the Black Mountains is so fast that the fans there are small
Sequoia National Park
Sequoia National Park is a national park in the southern Sierra Nevada east of Visalia, California, in the United States. It was established on September 25,1890, the park is south of and contiguous with Kings Canyon National Park, the two are administered by the National Park Service together as the Sequoia and Kings Canyon National Parks. They were designated the UNESCO Sequoia-Kings Canyon Biosphere Reserve in 1976, the park is famous for its giant sequoia trees, including the General Sherman tree, the largest tree on Earth. The General Sherman tree grows in the Giant Forest, which five out of the ten largest trees in the world. The Giant Forest is connected by the Generals Highway to Kings Canyon National Parks General Grant Grove, the parks giant sequoia forests are part of 202,430 acres of old-growth forests shared by Sequoia and Kings Canyon National Parks. Indeed, the preserve a landscape that still resembles the southern Sierra Nevada before Euro-American settlement. Many park visitors enter Sequoia National Park through its entrance near the town of Three Rivers at Ash Mountain at 1,700 ft elevation.
The last California grizzly was killed in this park in 1922, the California Black Oak is a key transition species between the chaparral and higher elevation conifer forest. At higher elevations in the front country, between 5,500 and 9,000 feet in elevation, the landscape becomes montane forest-dominated coniferous belt, found here are Ponderosa, Jeffrey and lodgepole pine trees, as well as abundant white and red fir. Found here too are the giant sequoia trees, the most massive living single-stem trees on earth, between the trees and summer snowmelts sometimes fan out to form lush, though delicate, meadows. In this region, visitors often see deer, Douglas squirrels, and American black bears. There are plans to reintroduce the bighorn sheep to this park, the vast majority of the park is roadless wilderness, no road crosses the Sierra Nevada within the parks boundaries. 84 percent of Sequoia and Kings Canyon National Parks is designated wilderness and is only by foot or by horseback. Sequoias backcountry offers a vast expanse of high-alpine wonders, covering the highest-elevation region of the High Sierra, the backcountry includes Mount Whitney on the eastern border of the park, accessible from the Giant Forest via the High Sierra Trail.
On the floor of canyon, at least two days hike from the nearest road, is the Kern Canyon hot spring, a popular resting point for weary backpackers. From the floor of Kern Canyon, the trail ascends again over 8,000 ft to the summit of Mount Whitney, in the summertime, Native Americans would travel over the high mountain passes to trade with tribes to the East. By the time the first European settlers arrived in the area, smallpox had spread to the region. The first European settler to homestead in the area was Hale Tharp, Tharp allowed his cattle to graze the meadow, but at the same time had a respect for the grandeur of the forest and led early battles against logging in the area
Southern California, often abbreviated as SoCal, is a geographic and cultural region that generally comprises Californias 10 southernmost counties. The region is described as eight counties, based on demographics and economic ties, Los Angeles, Riverside, San Bernardino, San Diego, Santa Barbara. The more extensive 10-county definition, which includes Kern and San Luis Obispo counties, is used and is based on historical political divisions. Southern California is an economic center for the state of California. The 8-county and 10-county definitions are not used for the greater Southern California Megaregion, the megaregions area is more expansive, extending east into Las Vegas and south across the Mexican border into Tijuana.5 million people. With over 22 million people, Southern California contains roughly 60 percent of Californias population, located east of Southern California is the Colorado Desert and the Colorado River at the border with Arizona. The Mojave Desert is located at the border with the state of Nevada while towards the south is the Mexico–United States border, within Southern California are two major cities, Los Angeles and San Diego, as well as three of the countrys largest metropolitan areas.
With a population of 3,792,621, Los Angeles is the most populous city in California and the second most populous in the United States. South of Los Angeles and with a population of 1,307,402 is San Diego, the second most populous city in the state and the eighth most populous in the nation. The counties of Los Angeles, San Diego, San Bernardino, and Riverside are the five most populous in the state, the motion picture and music industry are centered in the Los Angeles area in Southern California. Hollywood, a district within Los Angeles, gives its name to the American motion picture industry, headquartered in Southern California are The Walt Disney Company, Sony Pictures, Universal, MGM, Paramount Pictures, 20th Century Fox, and Warner Brothers. Universal, Warner Brothers, and Sony run major record companies, Southern California is home to a large homegrown surf and skateboard culture. Companies such as Vans, Quiksilver, No Fear, RVCA, some of the worlds biggest action sports events, including the X Games, Boost Mobile Pro, and the U. S.
Open of Surfing, are all held in Southern California. Southern California is important to the world of yachting, the annual Transpacific Yacht Race, or Transpac, from Los Angeles to Hawaii, is one of yachtings premier events. The San Diego Yacht Club held the Americas Cup, the most prestigious prize in yachting, from 1988 to 1995, Southern California is home to many sports franchises and sports networks such as Fox Sports Net. Many locals and tourists frequent the Southern California coast for its popular beaches, the desert city of Palm Springs is popular for its resort feel and nearby open spaces. Southern California is not a geographic designation and definitions of what constitutes Southern California vary. Geographically, Californias North-South midway point lies at exactly 37°958.23 latitude, around 11 miles south of San Jose, when the state is divided into two areas, the term Southern California usually refers to the 10 southernmost counties of the state
Lava Beds National Monument
Lava Beds National Monument is located in northeastern California, in Siskiyou and Modoc counties. The Monument lies on the flank of the Medicine Lake Volcano. The region in and around Lava Beds Monument lies at the junction of the Sierra-Klamath, the Monument was established as a United States National Monument on November 21,1925, and includes more than 46,000 acres. Lava Beds National Monument has numerous lava tube caves, with twenty-five having marked entrances and developed trails for public access, the monument offers trails through the high Great Basin xeric shrubland desert landscape and the volcanic field. 1872–1873, this area was the site of the Modoc War, the area of Captain Jacks Stronghold was named in his honor. Volcanic eruptions on the Medicine Lake shield volcano have created a rugged landscape punctuated by these many landforms of volcanism. Cinder cones are formed when magma is under great pressure and it is released in a fountain of lava, blown into the air from a central vent.
The lava cools as it falls, forming cinders that pile up around the vent, when the pressure has been relieved, the rest of the lava flows from the base of the cone. Cinder cones typically only erupt once, the cinder cones of Hippo Butte, Three Sisters, Juniper Butte, and Crescent Butte are all older than the Mammoth and Modoc Crater flows, more than 30, 000–40,000 years old. Eagle Nest Butte and Bearpaw Butte are 114,000 years old, Schonchin Butte cinder cone and the andesitic flow from its base were formed around 62,000 years ago. The flow that formed Valentine Cave erupted 10,850 years ago, an eruption that formed The Castles is younger than the Mammoth Crater flows. Even younger were eruptions from Fleener Chimneys, such as the Devils Homestead flow,10,500 years ago, about 1,110 years ago, plus or minus 60 years, the Callahan flow was produced by an eruption from Cinder Butte. Though Cinder Butte is just outside the boundary of the monument, spatter cones are built out of thicker lava. The lava is thrown out of the vent and builds, layer by layer, Fleener Chimneys and Black Crater are examples of spatter cones.
Roughly ninety percent of the lava in the Lava Beds Monument is basaltic, there are primarily two kinds of basaltic lava flows, pahoehoe and aa. Pahoehoe is smooth, often ropy and is the most common type of lava in Lava Beds, aa is formed when pahoehoe cools and loses some of its gases. Aa is rough and jagged, an excellent example is the Devils Homestead lava flow, most of the rest of the lava in the monument is andesitic. Pumice, a type of lava, is found covering the monument
The archive of his video chronicles offers an enhanced understanding of the history and people of California. He voiced the Backson in Winnie the Pooh, Howser was born Huell Burnley Howser in Gallatin, Tennessee on October 18,1945 to Harold Chamberlain and Jewell Havens Howser. Howsers first name is a blend of his parents names Harold and Jewell and he received a B. A. in history from the University of Tennessee, where he served as student body president. After serving in the U. S. Marine Corps and on the staff of U. S. Howser was a personality working for the University of Tennessee. After working in New York City as the host of WCBS-TVs Real Life show, Howser moved to Los Angeles, during 1982 and 1983, he served as weekend host and correspondent for Entertainment Tonight. In 1985, he joined KCET as a producer of Videolog, Californias Gold highlights small towns, events, or places of interest throughout California that are not well known to the general public. Howser conducted informal, often impromptu, interviews with locals involved with the sites he visits and he produced Californias Communities, Californias Golden Fairs, Californias Water, Californias Green, Californias Golden Coast, Californias Golden Parks, Road Trip, Visiting.
With Huell Howser, California Missions, Palm Springs, Our Neighborhoods, The Bench, articles written by Howser have appeared in Westways, the magazine of the Automobile Club of Southern California. In 1997, Howser featured prominently as himself alongside Tracey Ullman in character as Ruby Romaine in the Tracey Takes On, Howser spearheaded an unsuccessful effort to stop the demolition of buildings designed by Paul Williams at the Long Beach Naval Shipyard. He appeared in Who Killed the Electric Car. in his capacity as a reporter, witnessing the demolition, in 2011, Howser voiced the Backson in the post-credits scene of Walt Disney Animation Studioss feature film Winnie the Pooh. Howser lived in the historic El Royale apartments in Los Angeles and had homes in Palm Springs, on June 29,2015, Howsers Twentynine Palms home became available for rentals and weddings. On September 3,2015, his Volcano-Top Saucer House in the Mojave Desert sold for $650,000, Howser mentioned that he was a Methodist during his episode covering the Nevada County Fair on Californias Golden Fairs.
In 2003, Howser purchased the 1, 800-square-foot Volcano House, situated on a cinder cone just outside Barstow, along with 60 acres of desert. In 2010, Howser put his unusual Newberry Springs, California, in June 2012, The Panther, a student-run newspaper for Chapman University announced that Howser had donated the Volcano House to the school. On November 27,2012, The Sacramento Bee reported that Howser was retiring from making new shows, on January 7,2013, Howser died at his Palm Springs home at the age of 67. He had been battling cancer for years and his death certificate listed metastatic prostate cancer as the cause of death. Howsers body was cremated and his ashes were scattered at sea off the coast of Los Angeles County, on January 15,2013, a memorial was held for Howser, who said before his death that he did not want a funeral as he did not want attention. Howser donated his collection of Californias Gold episodes, as well as those of his other series
The orange is the fruit of the citrus species Citrus × sinensis in the family Rutaceae. It is called orange, to distinguish it from the related Citrus × aurantium. The sweet orange reproduces asexually, varieties of sweet orange arise through mutations, the orange is a hybrid between pomelo and mandarin. It has genes that are ~25% pomelo and ~75% mandarin, however, it is not a simple backcrossed BC1 hybrid, the chloroplast genes, and therefore the maternal line, seem to be pomelo. The sweet orange has had its genome sequenced. Earlier estimates of the percentage of pomelo genes varying from ~50% to 6% have been reported, sweet oranges were mentioned in Chinese literature in 314 BC. As of 1987, orange trees were found to be the most cultivated fruit tree in the world, orange trees are widely grown in tropical and subtropical climates for their sweet fruit. The fruit of the tree can be eaten fresh, or processed for its juice or fragrant peel. As of 2012, sweet oranges accounted for approximately 70% of citrus production, in 2014,70.9 million tonnes of oranges were grown worldwide, with Brazil producing 24% of the world total followed by China and India.
All citrus trees belong to the single genus Citrus and remain almost entirely interfertile and this includes grapefruits, limes and various other types and hybrids. The fruit of any citrus tree is considered a hesperidium, a kind of modified berry, different names have been given to the many varieties of the genus. Orange applies primarily to the sweet orange – Citrus sinensis Osbeck, the orange tree is an evergreen, flowering tree, with an average height of 9 to 10 m, although some very old specimens can reach 15 m. Its oval leaves, alternately arranged, are 4 to 10 cm long and have crenulate margins, when unripe, the fruit is green. The grainy irregular rind of the fruit can range from bright orange to yellow-orange. Like all other fruits, the sweet orange is non-climacteric. The Citrus sinensis group is subdivided into four classes with distinct characteristics, common oranges, blood or pigmented oranges, navel oranges, other citrus groups known as oranges are, Bitter orange, known as Seville orange, sour orange, bigarade orange and marmalade orange.
Like the sweet orange, it is a pomelo x mandarin hybrid, bergamot orange, grown mainly in Italy for its peel, producing a primary essence for perfumes, used to flavor Earl Grey tea. It is a hybrid, probably bitter orange x limetta, trifoliate orange, sometimes included in the genus
Riverside County, California
Riverside County, California is one of fifty-eight counties in the U. S. state of California. As of the 2010 census, the population was 2,189,641, making it the 4th-most populous county in California, the name was derived from the city of Riverside, which is the county seat. Riverside County is included in the Riverside-San Bernardino-Ontario, CA Metropolitan Statistical Area, the county is included in the Los Angeles-Long Beach, CA Combined Statistical Area. There is a concentration of sprawling tract housing communities around Riverside and along the Interstate 10,15. Roughly rectangle-shaped, Riverside County covers 7,208 square miles in Southern California, the county is mostly desert in the central and eastern portions, but has a Mediterranean climate in the western portion. Most of Joshua Tree National Park is located in the county, the resort cities of Palm Springs, Palm Desert, Indian Wells, La Quinta, Rancho Mirage, and Desert Hot Springs are all located in the Coachella Valley region of Riverside County.
Large numbers of Los Angeles area workers have moved to the county in recent years to take advantage of affordable housing. Along with neighboring San Bernardino County, it was one of the fastest growing regions in the prior to the recent changes in the regional economy. In addition, but significant, numbers of people have been moving into Southwest Riverside County from the San Diego-Tijuana metropolitan area, the cities of Temecula and Murrieta accounted for 20% of the increase in population of the county between 2000 and 2007. The indigenous peoples of what is now Riverside County are the Luiseño, Cupeño, the Luiseño lived in the Aguanga and Temecula Basins, Elsinore Trough and eastern Santa Ana Mountains and southward into San Diego County. The Cahullia lived to the east and north of the Luiseño in the valleys, Santa Rosa and San Jacinto Mountains. The first European settlement in the county was a Mission San Luis Rey de Francia estancia or farm and grapes were grown here. In 1819, the Mission granted land to Leandro Serrano, mayordomo of San Antonio de Pala Asistencia for the Mission of San Luis Rey for Rancho Temescal, following Mexican independence and the 1833 confiscation of Mission lands, more ranchos were granted.
New Mexican colonists founded the town of La Placita on the east side of the Santa Ana River at the extremity of what is now the city of Riverside in 1843. When the initial 27 California counties were established in 1850 the area known as Riverside County was divided between Los Angeles County and San Diego County. In 1853 the eastern part of Los Angeles County was used to create San Bernardino County, between 1891 and 1893 several proposals, and legislative attempts, were put forth to form new counties in Southern California. These proposals included one for a Pomona County and one for a San Jacinto County, none of the proposals were adopted until a measure to create Riverside County was signed by Governor Henry H. Markham on March 11,1893. The new county was created from parts of San Bernardino County, on May 2,1893, seventy percent of voters approved the formation of Riverside County
California is the most populous state in the United States and the third most extensive by area. Located on the western coast of the U. S, California is bordered by the other U. S. states of Oregon and Arizona and shares an international border with the Mexican state of Baja California. Los Angeles is Californias most populous city, and the second largest after New York City. The Los Angeles Area and the San Francisco Bay Area are the nations second- and fifth-most populous urban regions, California has the nations most populous county, Los Angeles County, and its largest county by area, San Bernardino County. The Central Valley, an agricultural area, dominates the states center. What is now California was first settled by various Native American tribes before being explored by a number of European expeditions during the 16th and 17th centuries, the Spanish Empire claimed it as part of Alta California in their New Spain colony. The area became a part of Mexico in 1821 following its war for independence.
The western portion of Alta California was organized as the State of California, the California Gold Rush starting in 1848 led to dramatic social and demographic changes, with large-scale emigration from the east and abroad with an accompanying economic boom. If it were a country, California would be the 6th largest economy in the world, fifty-eight percent of the states economy is centered on finance, real estate services and professional, scientific and technical business services. Although it accounts for only 1.5 percent of the states economy, the story of Calafia is recorded in a 1510 work The Adventures of Esplandián, written as a sequel to Amadis de Gaula by Spanish adventure writer Garci Rodríguez de Montalvo. The kingdom of Queen Calafia, according to Montalvo, was said to be a land inhabited by griffins and other strange beasts. This conventional wisdom that California was an island, with maps drawn to reflect this belief, shortened forms of the states name include CA, Cal. Calif. and US-CA.
Settled by successive waves of arrivals during the last 10,000 years, various estimates of the native population range from 100,000 to 300,000. The Indigenous peoples of California included more than 70 distinct groups of Native Americans, ranging from large, settled populations living on the coast to groups in the interior. California groups were diverse in their organization with bands, villages. Trade and military alliances fostered many social and economic relationships among the diverse groups, the first European effort to explore the coast as far north as the Russian River was a Spanish sailing expedition, led by Portuguese captain Juan Rodríguez Cabrillo, in 1542. Some 37 years English explorer Francis Drake explored and claimed a portion of the California coast in 1579. Spanish traders made unintended visits with the Manila galleons on their trips from the Philippines beginning in 1565
Pinnacles National Park
Pinnacles is managed by the National Park Service and the majority of the park is protected as wilderness. The national park is divided by the formations into East and West Divisions, connected by foot trails. The east side has shade and water, the west has high walls, the rock formations provide for spectacular pinnacles that attract rock climbers. The park features unusual talus caves that house at least thirteen species of bat, Pinnacles is most often visited in spring or fall because of the intense heat during the summer months. Park lands are prime habitat for prairie falcons, and are a site for California condors that have been hatched in captivity. Pinnacles National Monument was established in 1908 by U. S. President Theodore Roosevelt, Pinnacles National Park was created from the former Pinnacles National Monument by legislation passed by Congress in late 2012 and signed into law by President Barack Obama on January 10,2013. Native Americans in the Pinnacles region comprised the Chalon and Mutsun groups of the Ohlone people and these native people declined with the arrival of the Spanish in the 18th century, who brought novel diseases and changes to the natives way of life.
The last Chalon had died or departed from the area by 1810, from 1810 to 1865, when the first Anglo-American settlers arrived, the Pinnacles region was a wilderness without human use or habitation. The establishment of a Spanish mission at Soledad hastened the areas native depopulation through disease, archaeological surveys have found thirteen sites inhabited by Native Americans, twelve of which post-date the establishment of the missions. One site is believed to be about 2000 years old, by the 1880s the Pinnacles, known as the Palisades, were visited by picnickers from the surrounding communities who would explore the caves and camp. The first account of the Pinnacles region appeared in print in 1881, between 1889 and 1891, newspaper articles shifted from describing excursions to the Palisades to calling them the Pinnacles. Interest in the rose to the point that the Hollister Free Lance sent a reporter to the Pinnacles. Investors came from San Francisco to consider placing a hotel there. In 1894 a post office was established in Bear Valley, since there was at least one other Bear Valley in California, the post office was named Cook after Mrs.
Hains maiden name. In 1924 the post office was renamed Pinnacles, Schuyler Hain was a homesteader who arrived in the Pinnacles area in 1891 from Michigan, following his parents and eight siblings to Bear Valley. White, was a student at Stanford University, and White brought one of his professors to see the Pinnacles in 1893, dr. Gilbert was impressed by the scenery, and his comments inspired Hain to publicize the region. Hain led tours to Bear Valley and through the caves, advocating the preservation of the Pinnacles, Hains efforts resulted in a 1904 visit by Stanford president David Starr Jordan, who contacted Fresno Congressman James C. Jordan and Needham in turn influenced Gifford Pinchot to advocate the establishment of the Pinnacles Forest Reserve to President Theodore Roosevelt, Roosevelt proclaimed the establishment on July 8,1906
Yosemite National Park
Yosemite National Park is a national park spanning portions of Tuolumne and Madera counties in Northern California. The park, which is managed by the National Park Service, on average, about 4 million people visit Yosemite each year, and most spend the majority of their time in the seven square miles of Yosemite Valley. The park set a record in 2016, surpassing 5 million visitors for the first time in its history. Almost 95% of the park is designated wilderness, Yosemite was central to the development of the national park idea. First, Galen Clark and others lobbied to protect Yosemite Valley from development, Yosemite is one of the largest and least fragmented habitat blocks in the Sierra Nevada, and the park supports a diversity of plants and animals. The park has a range from 2,127 to 13,114 feet and contains five major vegetation zones, chaparral/oak woodland, lower montane forest, upper montane forest, subalpine zone. Of Californias 7,000 plant species, about 50% occur in the Sierra Nevada, there is suitable habitat for more than 160 rare plants in the park, with rare local geologic formations and unique soils characterizing the restricted ranges many of these plants occupy.
The geology of the Yosemite area is characterized by granitic rocks, about 10 million years ago, the Sierra Nevada was uplifted and tilted to form its relatively gentle western slopes and the more dramatic eastern slopes. The uplift increased the steepness of stream and river beds, resulting in formation of deep, about one million years ago and ice accumulated, forming glaciers at the higher alpine meadows that moved down the river valleys. Ice thickness in Yosemite Valley may have reached 4,000 feet during the early glacial episode, the downslope movement of the ice masses cut and sculpted the U-shaped valley that attracts so many visitors to its scenic vistas today. The name Yosemite originally referred to the name of a tribe which was driven out of the area by the Mariposa Battalion. Before the area was called Ahwahnee by indigenous people, as revealed by archeological finds, the Yosemite Valley has been inhabited for nearly 3,000 years, though humans may have first visited the area as long as 8,000 to 10,000 years ago.
The indigenous natives called themselves the Ahwahneechee, meaning dwellers in Ahwahnee and they are related to the Northern Paiute and Mono tribes. Many tribes visited the area to trade, including nearby Central Sierra Miwoks, a major trading route went over Mono Pass and through Bloody Canyon to Mono Lake, just to the east of the Yosemite area. Vegetation and game in the region were similar to that present today, acorns were a staple to their diet, as well as seeds and plants, salmon. In 1851 as part of the Mariposa Wars intended to suppress Native American resistance and he was pursuing forces of around 200 Ahwahneechee led by Chief Tenaya. Accounts from this battalion were the first well-documented reports of ethnic Europeans entering Yosemite Valley, attached to Savages unit was Dr. Lafayette Bunnell, the company physician, who wrote about his awestruck impressions of the valley in The Discovery of the Yosemite. Bunnell is credited with naming Yosemite Valley, based on his interviews with Chief Tenaya, Bunnell wrote that Chief Tenaya was the founder of the Pai-Ute Colony of Ah-wah-nee