Fresno County, California
Fresno County the County of Fresno, is a county located in the central portion of the U. S. state of California. As of January 1, 2018, the population was 1,007,229; the county seat is the fifth-largest city in California. Fresno County comprises the Fresno, CA Metropolitan Statistical Area, part of the Fresno-Madera, CA Combined Statistical Area, it is located in north of Bakersfield. The area now known as Fresno County was the traditional homeland of Yokuts and Mono peoples, was settled by Spaniards during a search for suitable mission sites. In 1846, this area became part of the United States as a result of the Mexican War. Fresno County was formed in 1856 from parts of Mariposa and Tulare counties. Fresno is Spanish for "ash tree" and it was in recognition of the abundance of the shrubby local Ash, Fraxinus dipetala, growing along the San Joaquin River that it received its name. Parts of Fresno County's territory were given to Mono County in 1861 and to Madera County in 1893; the original county seat was along the San Joaquin River in Millerton, but was moved to the growing town of Fresno on the newly built Southern Pacific Railroad line after a flood destroyed much of the town.
The settling of Fresno County was not without its conflicts, land disputes, other natural disasters. Floods caused immeasurable damage elsewhere and fires plagued the settlers of Fresno County. In 1882, the greatest of the early day fires wiped out an entire block of the city of Fresno, was followed by another devastating blaze in 1883. At the same time residents brought irrigation and extensive agriculture to the area. Moses Church developed the first canals, called "Church Ditches," for irrigation; these canals allowed extensive cultivation of wheat. Francis Eisen, leader of the wine industry in Fresno County began the raisin industry in 1875, when he accidentally let some of his grapes dry on the vine. A. Y. Easterby and Clovis Cole developed extensive grain and cattle ranches; these and other citizens laid the groundwork for the cultivation of Fresno County – now one of the nation's leading agricultural regions. In more recent times cotton became a major crop in Fresno and the southern San Joaquin Valley, but recent drought and lower demand have lessened cotton's importance to the local economy.
The discovery of oil in the western part of the county, near the town of Coalinga at the foot of the Coast Ranges, brought about an economic boom in the 1900s though the field itself was known at least as early as the 1860s. By 1910, Coalinga Oil Field, the largest field in Fresno County, was the most richly productive oil field in California; the Coalinga field continues to produce oil, is the eighth-largest field in the state. More than thirty structures in Fresno County are on the National Register of Historic Places, including the Fresno Water Tower, which once held over 250,000 US gallons of water for the city of Fresno, the Meux Home, Kearney Mansion Museum. According to the U. S. Census Bureau, the county has a total area of 6,011 square miles, of which 5,958 square miles is land and 53 square miles is water. Major watercourses are the San Joaquin River, Kings River, Delta-Mendota Canal, Big Creek, Friant Kern Canal, Helm Canal and Madera Canal, it is bordered on the west on the east by the Sierra Nevada.
It is the center of a large agricultural area, known as the most agriculturally rich county in the United States. The county withdrew 3.7 billion US gallons of fresh water per day in 2000, more than any other county in the United States. Fresno County is part of the Madera AVA wine region. Fresno was named after two particular ash trees that grew near the town of Minkler on the Kings River, one of, still alive and standing. Giant Sequoia National Monument Kings Canyon National Park Sequoia National Forest Sierra National Forest A number of minerals have been discovered in the county, including macdonaldite, walstromite, verplanckite, muirite and kampfite; the 2010 United States Census reported that Fresno County had a population of 930,450. The racial makeup of Fresno County was 515,145 White, 49,523 African American, 15,649 Native American, 89,357 Asian, 1,405 Pacific Islander, 217,085 from other races, 42,286 from two or more races. Hispanic or Latino of any race were 468,070 persons. 46.0% of Fresno County's population is of Mexican descent.
As of the census of 2000, there were 799,407 people, 252,940 households, 186,669 families residing in the county. The population density was 134 people per square mile. There were 270,767 housing units at an average density of 45 per square mile; the racial makeup of the county was 54.3% White, 5.3% Black or African American, 1.6% Native American, 8.1% Asian, 0.1% Pacific Islander, 25.9% from other races, 4.7% from two or more races. 44.0% of the population were Hispanic or Latino of any race. 7.5% were of German ancestry according to Census 2000. 59.3% spoke English, 31.5% Spanish and 3.1% Hmong as their first language. There were 252,940 households ou
William More Gabb
William More Gabb was an American paleontologist. Gabb was born and educated in Philadelphia, the leading center of American science at the time, he graduated from Jefferson Grammar School at age thirteen and was admitted to the prestigious Central High School of Philadelphia. He distinguished himself in his studies and showed an interest in natural history and geology, he graduated in 1857 with a bachelor of arts degree. Gabb chose to pursue a career in geology and sought the assistance of the notable geologist, James Hall in Albany, New York. For a time he became Hall’s student and assistant before returning to Philadelphia in 1860. There he became an active member of the Academy of Natural Sciences and briefly joined a group of young scientists studying at the Smithsonian Institution in Washington D. C. In 1861, Josiah Whitney, chief of the California Geological Survey, was searching for a qualified paleontologist to assist with the survey. After much inquiry, Gabb was recommended as the best authority in American Cretaceous paleontology and in 1862 he was appointed paleontologist to the survey.
William H. Brewer, who led the field work for Whitney, described Gabb as “young, grassy green, but decidedly smart and well posted in his department--he will develop well with the hard knocks of camp.” For the next several years Gabb did extensive work throughout California and beyond. In addition to field work, he classified the survey’s Cretaceous and Tertiary fossils and documented his findings in the survey reports, writing on paleontology in the first and second volumes of the Geological Survey of California. In 1863 he was sent to investigate the Cretaceous rocks of Oregon, Washington Territory and Vancouver Island, Canada. In 1864 he explored southeastern Oregon; the following year, 1865, was spent in cataloging and describing the fossils collected by the survey. In 1866 he explored the Coast Ranges and in 1867 explored the White Mountains along the border between California and Nevada. In 1867, an expedition was organized to explore Baja California under the leadership of John Ross Browne.
Gabb participated in the survey which made important contributions to understanding the geology and geography of the peninsula. Gabb returned to the East in 1868 and gave a summary of his research in a speech to the National Academy of Sciences. After seeing to the publication of the second volume of California Paleontology, Gabb ended his participation in the California survey. In 1868 the government of Santo Domingo arranged through the Santo Domingo Land and Mining Company for a geological survey of their country. Gabb was hired by the corporation to perform this survey and remained on the island from 1869 till 1872, he published his findings On the Topography and Geology of Santo Domingo. In 1873 the government of Costa Rica engaged Gabb to perform a survey of the geography and resources in the little-known Talamanca Region. One of the principal supporters of this expedition was Minor C. Keith, who started the banana industry in Costa Rica and co-founded the United Fruit Company. During his three-year survey, Gabb made extensive ethnological and natural history collections for the Smithsonian.
He was assisted by Jose Zeledon, to become a well known Costa Rican ornithologist. While in Cost Rica, Gabb married Victoria, they had one son, born in 1874 or 1875. Gabb contracted a virulent form of malaria in Costa Rica, he returned to Philadelphia in 1876 and traveled again to Santo Domingo with the intention of developing a promising mining claim. However, his declining health forced him back to Philadelphia, where he died on May 30, 1878, he was buried at Woodland Cemetery. Appletons' Cyclopedia of American Biography National Academy of Sciences Biographical Memoirs, William H. Dall Up and Down California in 1860-1864, William H. Brewer On the Trail of the Golden Frog: With Warszewicz and Gabb in Central America, Jay M. Savage Dictionary of Scientific Biography, Charles Coulston Gillispie, editor National Academy of Sciences Biographical Memoir
In modern mapping, a topographic map is a type of map characterized by large-scale detail and quantitative representation of relief using contour lines, but using a variety of methods. Traditional definitions require a topographic map to show both man-made features. A topographic survey is published as a map series, made up of two or more map sheets that combine to form the whole map. A contour line is a line connecting places of equal elevation. Natural Resources Canada provides this description of topographic maps:These maps depict in detail ground relief, forest cover, administrative areas, populated areas, transportation routes and facilities, other man-made features. Other authors define topographic maps by contrasting them with another type of map. However, in the vernacular and day to day world, the representation of relief is popularly held to define the genre, such that small-scale maps showing relief are called "topographic"; the study or discipline of topography is a much broader field of study, which takes into account all natural and man-made features of terrain.
Topographic maps are based on topographical surveys. Performed at large scales, these surveys are called topographical in the old sense of topography, showing a variety of elevations and landforms; this is in contrast to older cadastral surveys, which show property and governmental boundaries. The first multi-sheet topographic map series of an entire country, the Carte géométrique de la France, was completed in 1789; the Great Trigonometric Survey of India, started by the East India Company in 1802 taken over by the British Raj after 1857 was notable as a successful effort on a larger scale and for determining heights of Himalayan peaks from viewpoints over one hundred miles distant. Topographic surveys were prepared by the military to assist in planning for battle and for defensive emplacements; as such, elevation information was of vital importance. As they evolved, topographic map series became a national resource in modern nations in planning infrastructure and resource exploitation. In the United States, the national map-making function, shared by both the Army Corps of Engineers and the Department of the Interior migrated to the newly created United States Geological Survey in 1879, where it has remained since.1913 saw the beginning of the International Map of the World initiative, which set out to map all of Earth's significant land areas at a scale of 1:1 million, on about one thousand sheets, each covering four degrees latitude by six or more degrees longitude.
Excluding borders, each sheet was up to 66 cm wide. Although the project foundered, it left an indexing system that remains in use. By the 1980s, centralized printing of standardized topographic maps began to be superseded by databases of coordinates that could be used on computers by moderately skilled end users to view or print maps with arbitrary contents and scale. For example, the Federal government of the United States' TIGER initiative compiled interlinked databases of federal and local political borders and census enumeration areas, of roadways and water features with support for locating street addresses within street segments. TIGER was used in the 1990 and subsequent decennial censuses. Digital elevation models were compiled from topographic maps and stereographic interpretation of aerial photographs and from satellite photography and radar data. Since all these were government projects funded with taxes and not classified for national security reasons, the datasets were in the public domain and usable without fees or licensing.
TIGER and DEM datasets facilitated Geographic information systems and made the Global Positioning System much more useful by providing context around locations given by the technology as coordinates. Initial applications were professionalized forms such as innovative surveying instruments and agency-level GIS systems tended by experts. By the mid-1990s user-friendly resources such as online mapping in two and three dimensions, integration of GPS with mobile phones and automotive navigation systems appeared; as of 2011, the future of standardized, centrally printed topographical maps is left somewhat in doubt. Topographic maps have multiple uses in the present day: any type of geographic planning or large-scale architecture; the various features shown on the map are represented by conventional symbols. For example, colors can be used to indicate a classification of roads; these signs are explained in the margin of the map, or on a separately published characteristic sheet. Topographic maps are commonly called contour maps or topo maps.
In the United States, where the primary national series is organized by a strict 7.5-minute grid, they are called topo quads or quadrangles. Topographic maps conventionally show land contours, by means of contour lines. Contour lines are curves. In other words, every point on the marked line of 100 m elevation is 100 m above mean sea level; these maps show
A summit is a point on a surface, higher in elevation than all points adjacent to it. The topographic terms acme, apex and zenith are synonymous; the term top is used only for a mountain peak, located at some distance from the nearest point of higher elevation. For example, a big massive rock next to the main summit of a mountain is not considered a summit. Summits near a higher peak, with some prominence or isolation, but not reaching a certain cutoff value for the quantities, are considered subsummits of the higher peak, are considered part of the same mountain. A pyramidal peak is an exaggerated form produced by ice erosion of a mountain top. Summit may refer to the highest point along a line, trail, or route; the highest summit in the world is Everest with height of 8844.43 m above sea level. The first official ascent was made by Sir Edmund Hillary, they reached the mountain`s peak in 1953. Whether a highest point is classified as a summit, a sub peak or a separate mountain is subjective; the UIAA definition of a peak is.
Otherwise, it's a subpeak. In many parts of the western United States, the term summit refers to the highest point along a road, highway, or railroad. For example, the highest point along Interstate 80 in California is referred to as Donner Summit and the highest point on Interstate 5 is Siskiyou Mountain Summit. A summit climbing differs from the common mountaineering. Summit expedition requires: 1+ year of training, a good physical shape, a special gear. Although a huge part of climber’s stuff can be left and taken at the base camps or given to porters, there is a long list of personal equipment. In addition to common mountaineers’ gear, Summit climbers need to take Diamox and bottles of oxygen. There are special requirements for crampons, ice axe, rappel device, etc. Geoid Hill – Landform that extends above the surrounding terrain Nadir Summit accordance Peak finder Summit Climbing Gear List
Sierra Nevada (U.S.)
The Sierra Nevada is a mountain range in the Western United States, between the Central Valley of California and the Great Basin. The vast majority of the range lies in the state of California, although the Carson Range spur lies in Nevada; the Sierra Nevada is part of the American Cordillera, a chain of mountain ranges that consists of an continuous sequence of such ranges that form the western "backbone" of North America, Central America, South America and Antarctica. The Sierra runs 400 miles north-to-south, is 70 miles across east-to-west. Notable Sierra features include the largest alpine lake in North America; the Sierra is home to three national parks, twenty wilderness areas, two national monuments. These areas include Yosemite and Kings Canyon National Parks; the character of the range is shaped by its ecology. More than one hundred million years ago during the Nevadan orogeny, granite formed deep underground; the range started to uplift four million years ago, erosion by glaciers exposed the granite and formed the light-colored mountains and cliffs that make up the range.
The uplift caused a wide range of elevations and climates in the Sierra Nevada, which are reflected by the presence of five life zones. Uplift continues due to faulting caused by tectonic forces, creating spectacular fault block escarpments along the eastern edge of the southern Sierra; the Sierra Nevada has a significant history. The California Gold Rush occurred in the western foothills from 1848 through 1855. Due to inaccessibility, the range was not explored until 1912; the Sierra Nevada lies in Central and Eastern California, with a small but important spur extending into Nevada. West-to-east, the Sierra Nevada's elevation increases from 1,000 feet in the Central Valley to heights of about 14,000 feet at its crest 50–75 miles to the east; the east slope forms the steep Sierra Escarpment. Unlike its surroundings, the range receives a substantial amount of snowfall and precipitation due to orographic lift; the Sierra Nevada's irregular northern boundary stretches from the Susan River and Fredonyer Pass to the North Fork Feather River.
It represents where the granitic bedrock of the Sierra Nevada dives below the southern extent of Cenozoic igneous surface rock from the Cascade Range. It is bounded on the west by California's Central Valley and on the east by the Basin and Range Province; the southern boundary is at Tehachapi Pass. Physiographically, the Sierra is a section of the Cascade-Sierra Mountains province, which in turn is part of the larger Pacific Mountain System physiographic division; the California Geological Survey states that "the northern Sierra boundary is marked where bedrock disappears under the Cenozoic volcanic cover of the Cascade Range." The range is drained on its western slope by the Central Valley watershed, which discharges into the Pacific Ocean at San Francisco. The northern third of the western Sierra is part of the Sacramento River watershed, the middle third is drained by the San Joaquin River; the southern third of the range is drained by the Kings, Kaweah and Kern rivers, which flow into the endorheic basin of Tulare Lake, which overflows into the San Joaquin during wet years.
The eastern slope watershed of the Sierra is much narrower. From north to south, the Susan River flows into intermittent Honey Lake, the Truckee River flows from Lake Tahoe into Pyramid Lake, the Carson River runs into Carson Sink, the Walker River into Walker Lake. Although none of the eastern rivers reach the sea, many of the streams from Mono Lake southwards are diverted into the Los Angeles Aqueduct which provides water to Southern California; the height of the mountains in the Sierra Nevada increases from north to south. Between Fredonyer Pass and Lake Tahoe, the peaks range from 5,000 feet to more than 9,000 feet; the crest near Lake Tahoe is 9,000 feet high, with several peaks approaching the height of Freel Peak. Farther south, the highest peak in Yosemite National Park is Mount Lyell; the Sierra rises to 14,000 feet with Mount Humphreys near Bishop, California. Near Lone Pine, Mount Whitney is at 14,505 feet, the highest point in the contiguous United States. South of Mount Whitney, the elevation of the range dwindles.
The crest elevation is 10,000 feet near Lake Isabella, but south of the lake, the peaks reach to only a modest 8,000 feet. There are several notable geographical features in the Sierra Nevada: Lake Tahoe is a large, clear freshwater lake in the northern Sierra Nevada, with an elevation of 6,225 ft and an area of 191 sq mi. Lake Tahoe lies between a spur of the Sierra. Hetch Hetchy Valley, Yosemite Valley, Kings Canyon, Kern Canyon are examples of many glacially-scoured canyons on the west side of the Sierra. Yosemite National Park is filled with notable features such as waterfalls, granite domes, high mountains and meadows. Groves of Giant Sequoia
In mountaineering, a first ascent is the first successful, documented attainment of the top of a mountain, or the first to follow a particular climbing route. First mountain ascents are notable because they entail genuine exploration, with greater risks and recognition than climbing a route pioneered by others; the person who performs the first ascent is called the first ascensionist. In free climbing, a first ascent of a climbing route is the first successful, documented climb of a route without using equipment such as anchors or ropes for aiding progression or resting; the details of the first ascents of many prominent mountains are scanty or unknown. Today, first ascents are carefully recorded and mentioned in guidebooks. Overwhelmingly, the idea of a "first ascent" is a modern one in places such as Africa and the Americas with a history of colonialism. There may be little or no physical evidence or documentation about the climbing activities of indigenous peoples living near the mountain.
For example, the volcano Llullaillaco on the border of Argentina and Chile is known to have been climbed in the prehistoric period due to the presence of Incan artifacts at the summit, yet credit for the first recorded ascent is given to Chilean climbers Bión González and Juan Harseim, who summited in 1952. The term is used when referring to ascents made using a specific technique or taking a specific route, such as via the North Face, without ropes or without oxygen. In rock climbing, some of the earlier first ascents for difficult routes, involved a mix of free and aid climbing; as a result, purist free climbers have developed the designation first free ascent to acknowledge ascents intentionally made more challenging by using equipment for protection only. Second ascents are noteworthy in climbing circles involving improving on a pioneering route through lessons learned from it, experience which may span from technical improvements to having a better understanding of how much gear and provisions to take.
Some other "first ascents" could be recorded for particular routes. One is the First Winter Ascent, which is, as the name suggests, the first ascent made during winter season; this is most important where the climate of winter is a factor in increasing the difficulty grade of the route. In the Northern Hemisphere conventional winter ascents are made between December 21 and March 21 and are not related to the conditions. In the Himalayan area, although Nepal and China's winter season permits start on December 1, the conventional winter ascents begin on December 21. Another is the First Solo Ascent, the first ascent made by a single climber; this is most important on high-level rock climbing, when the climber has to provide his own security or when climbing without any protection at all. Another type of ascent known as FFA is the first female ascent. While not considered as important, this designation remains significant on some difficult, limit-pushing climbs, where the first female ascent may not happen until well after the FA, due to possible difficulties encountered by female physicality.
The term last ascent has been used to refer to an ascent of a mountain or face that has subsequently changed to such an extent – because of rockfall – that the route no longer exists. It can be used facetiously to refer to a climb, so unpleasant or unaesthetic that no one would willingly repeat the first ascent party's ordeal. List of first ascents Notable first free ascents List of first ascents in the Alps List of first ascents in the Himalaya Glossary of climbing terms Alpinist Magazine – Peter Mortimer's First Ascent, Issue 17
A mountain range or hill range is a series of mountains or hills ranged in a line and connected by high ground. A mountain system or mountain belt is a group of mountain ranges with similarity in form and alignment that have arisen from the same cause an orogeny. Mountain ranges are formed by a variety of geological processes, but most of the significant ones on Earth are the result of plate tectonics. Mountain ranges are found on many planetary mass objects in the Solar System and are a feature of most terrestrial planets. Mountain ranges are segmented by highlands or mountain passes and valleys. Individual mountains within the same mountain range do not have the same geologic structure or petrology, they may be a mix of different orogenic expressions and terranes, for example thrust sheets, uplifted blocks, fold mountains, volcanic landforms resulting in a variety of rock types. Most geologically young mountain ranges on the Earth's land surface are associated with either the Pacific Ring of Fire or the Alpide Belt.
The Pacific Ring of Fire includes the Andes of South America, extends through the North American Cordillera along the Pacific Coast, the Aleutian Range, on through Kamchatka, Taiwan, the Philippines, Papua New Guinea, to New Zealand. The Andes is 7,000 kilometres long and is considered the world's longest mountain system; the Alpide belt includes Indonesia and Southeast Asia, through the Himalaya, Caucasus Mountains, Balkan Mountains fold mountain range, the Alps, ends in the Spanish mountains and the Atlas Mountains. The belt includes other European and Asian mountain ranges; the Himalayas contain the highest mountains in the world, including Mount Everest, 8,848 metres high and traverses the border between China and Nepal. Mountain ranges outside these two systems include the Arctic Cordillera, the Urals, the Appalachians, the Scandinavian Mountains, the Great Dividing Range, the Altai Mountains and the Hijaz Mountains. If the definition of a mountain range is stretched to include underwater mountains the Ocean Ridges form the longest continuous mountain system on Earth, with a length of 65,000 kilometres.
The mountain systems of the earth are characterized by a tree structure, where mountain ranges can contain sub-ranges. The sub-range relationship is expressed as a parent-child relationship. For example, the White Mountains of New Hampshire and the Blue Ridge Mountains are sub-ranges of the Appalachian Mountains. Equivalently, the Appalachians are the parent of the White Mountains and Blue Ridge Mountains, the White Mountains and the Blue Ridge Mountains are children of the Appalachians; the parent-child expression extends to the sub-ranges themselves: the Sandwich Range and the Presidential Range are children of the White Mountains, while the Presidential Range is parent to the Northern Presidential Range and Southern Presidential Range. The position of mountains influences climate, such as snow; when air masses move up and over mountains, the air cools producing orographic precipitation. As the air descends on the leeward side, it warms again and is drier, having been stripped of much of its moisture.
A rain shadow will affect the leeward side of a range. Mountain ranges are subjected to erosional forces which work to tear them down; the basins adjacent to an eroding mountain range are filled with sediments which are buried and turned into sedimentary rock. Erosion is at work while the mountains are being uplifted until the mountains are reduced to low hills and plains; the early Cenozoic uplift of the Rocky Mountains of Colorado provides an example. As the uplift was occurring some 10,000 feet of Mesozoic sedimentary strata were removed by erosion over the core of the mountain range and spread as sand and clays across the Great Plains to the east; this mass of rock was removed as the range was undergoing uplift. The removal of such a mass from the core of the range most caused further uplift as the region adjusted isostatically in response to the removed weight. Rivers are traditionally believed to be the principal cause of mountain range erosion, by cutting into bedrock and transporting sediment.
Computer simulation has shown that as mountain belts change from tectonically active to inactive, the rate of erosion drops because there are fewer abrasive particles in the water and fewer landslides. Mountains on other planets and natural satellites of the Solar System are isolated and formed by processes such as impacts, though there are examples of mountain ranges somewhat similar to those on Earth. Saturn's moon Titan and Pluto, in particular exhibit large mountain ranges in chains composed of ices rather than rock. Examples include the Mithrim Montes and Doom Mons on Titan, Tenzing Montes and Hillary Montes on Pluto; some terrestrial planets other than Earth exhibit rocky mountain ranges, such as Maxwell Montes on Venus taller than any on Earth and Tartarus Montes on Mars, Jupiter's moon Io has mountain ranges formed from tectonic processes including Boösaule Montes, Dorian Montes, Hi'iaka Montes and Euboea Montes. Peakbagger Ranges Home Page Bivouac.com