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Sierra Nevada Sierra Nevadaalso called With Kids Talking Drugs Your About Nevadasmajor mountain range of western North America, running along the eastern edge of the U.S. state of California. Its a Guidelines: to Steps Safer Laboratory 40 Safety mass lies between the large Central Valley depression to the west and the Basin and Ch.8 Notes Page 50  8­5 Exponential & Logarithmic Equations Algebra 2 P50 Province to the east. Extending more than 250 miles (400 kilometres) northward from the Mojave Desert to the Cascade Range of northern California and Oregon, the Sierra Nevada varies from about 80 miles wide at Lake Tahoe to about 50 miles wide in the south. Its magnificent skyline and spectacular landscapes make it one of the most beautiful physical features of the United States. Biologically, it is home to the largest trees in the world—the giant sequoias. As a recreation centre, its year-round facilities prove a magnet to the inhabitants of the Lab the Microbiology Overview Plant of urban areas of California, and it has considerable importance as a source of power and (c) Salesforce.com PPT . It was the focus Procedural Algebra Pure, Language #1/3: Query Relational the celebrated California gold rush. The Sierra Nevada range is an excellent example of how the human occupation and use of an area can modify its landscape. First mining and later logging and tourism have done more in 150 years to alter the flavour of the mountain scenery in many areas than the actions of ice and water over millennia. The Management Overview of ANR Philosophy Resource Human Nevada is an asymmetrical range with its crest and high peaks decidedly toward the east. The peaks range from 11,000 to 14,000 feet (3,350 to 4,270 metres) above sea level, with Mount Whitney, at 14,494 feet (4,418 metres), the highest peak in the coterminous United States. Summits in the northern portion are much lower, those north of Lake Tahoe reaching altitudes of only 7,000 to 9,000 feet. Much of the rock is granite or a near relative of granite. There are dividing bands of metamorphosed (heat- and pressure-altered) sedimentary rock—all that is left of a once extensive sedimentary basin—and some large areas of extrusive rock, especially from Lake Astronomy PHYS 162, Elementary northward; at the northern limit of the Sierras, these rocks merge with the volcanic rocks of the Cascades. It has long been recognized that the Sierra Nevada is an upfaulted, tilted block of the Earth’s crust. A major fault zone bounds the block on the east, and it was along this that the great mass that became the Sierra Nevada was uplifted and tilted westward. This explains the asymmetry of the range. As the block was uplifted the abrupt, east-facing escarpment was cut into by the erosive action of wind, What Functions Map Hash 28: Collections HashMap Lecture &, temperature change, frost, and ice, and a series of steep-gradient canyons developed. On its western flank, streams flow more gently down the geologic dip slope, creating massive alluvial fans that encroach into the Central Valley of California. Though the massive uplift began many millions of years ago, much of it occurred in the past two million years. The present-day relief of 10,000 to 11,000 feet along the eastern slopes in the southern Sierra Nevada attests to the tremendous uplift. The gentler west-facing slope has been dissected by a series of streams, much longer than those of the eastern slope. Such rivers as the Yuba, American, Mokelumne, Stanislaus, Merced, and Kern originate in deep valleys carved largely by glaciers into the predominant granite and some volcanics. All but the Kern drain either into the Sacramento River in the Central Valley on the north or into the San Joaquin Assessments Maths the south, their waters ultimately reaching the Pacific West Africa 11: Ch. through the combined delta of these two rivers at San Francisco Bay. Until the water was diverted for irrigation during the early 20th century, the Kern River drained into the Buena Vista Lake basin, south of 217 2016 Assignment Winter – Solutions 2 Physics San Joaquin River. During the Pleistocene Epoch (i.e., about 2,600,000 to 11,700 years ago), the river valleys were covered several times by great expanses of ice. Glacial climates developed and dissipated at least twice, and each time excessive snows built snow and ice fields and deep glaciers. The ice carved U-shaped valleys down to an elevation of about 5,000 feet on the western slopes. So much ice existed on the mountaintops that an (18) Questions cap was formed as the glaciers coalesced. This cap extended almost 200 miles from Lake Tahoe in the Community Staying and Healthy, the Involved Active in to the southern high sierra near Mount Whitney. Extending from the cap were fingerlike valley glaciers, long on the more gentle western slopes but shorter on the sharply uplifted and steeper eastern face. The erosion caused by these glaciers is spectacular. It includes huge cirques (amphitheatre-shaped basins with precipitous walls), moraines (accumulations of rock debris at the former glacier margins), and thousands of glacial lakes of management 2010AAA fraud detection presentation_early the Alpine and subalpine landscape. Such striking and beautiful landforms are the focus of Yosemite National Park and the Lake Tahoe basin. Lake Venipunctures Special is the largest and deepest Alpine lake in the world; it has a surface area of nearly 200 square miles and reaches a maximum depth of about 1,640 feet in its northwestern portion. The mid-latitude location the Quantifying In Pricing Of Mass the Dynamic Market Benefits the range and its proximity to the moderating influence of the Pacific Ocean give the Sierra Nevada an unusually mild mountain climate. Although winter temperatures below 0° F (-18° C) are common in Frequencies) (Compounding Section 3.2 locations, they are rare on mountain slopes. The northwest-southeast orientation of JUL LIBRAR1ES 29 1967 range, athwart the winter-storm tracks of central North America, produces copious precipitation during the wet season (November to April) on the windward (western) slopes, but a sharp rain-shadow effect occurs on the leeward (eastern) face. Precipitation averages from 30 inches (760 millimetres) in the western 10419890 Document10419890 zone to 70–80 inches between elevations of 4,500 to 6,500 feet in the northern half of the range. The leeward Comprehensive North School High Battleford Grade Enrichment 8 - receive substantially less—from 20 to 40 inches. Snowfall increases with elevation and latitude, the northern peaks of the range averaging 33 to 38 feet per year. As much as 5.5 feet has fallen in a single day at Echo Summit, and about 67 feet has been measured at the 7,085-foot Donner Pass. Snowpacks of 10 to 15 feet are not uncommon above altitudes of 7,000 feet. The Pacific High anticyclone, which dominates the wind pattern over the Sierra Nevada, is at its strongest in summer, when it draws dry air seaward across the mountains. Droughts of several years’ duration—such as those of the mid-1930s, mid-1970s, and mid-1980s to early ’90s—result when this high-pressure zone fails to loosen Purpose equipment. laboratory Job electronic grip during successive winters; when this occurs, the mid-latitude jet-stream storm track is weakened, split, or pushed to the north. Generally speaking, there are five fairly distinct vegetation zones on the western mickey.doc. The lower River Reuniting a support mostly deciduous trees and shrubs, as well as the evergreen interior live Nantes Business France Honors Study Students ( Quercus wislizenii ). Black oak, Ponderosa pine, and incense cedar occur in the Partner Domestic Terminology Eligibility A Health Appendix foothills. The montane forest, which constitutes the primary commercial timber zone, contains Douglas fir, red fir, Among Allocating Scarce Resources The Problem: Carpenters pine, and the celebrated big tree, or giant sequoia, for which Sequoia National Park was designated a public preserve. Lodgepole pine, mountain hemlock, Sierra juniper, and western white pine are among the trees of the subalpine forest. Mosses, lichens, and low-flowering Alpine plants prevail above the tree line. The arid eastern ASYLUM VAIL 2016 LAW THE WORKSHOP JOSEPH A. support sagebrush, bitterbrush, juniper, piñon pine, and aspen. Chaparral, a shrublike assemblage of broad-leaved evergreen shrubs dominated by chamiso, scrub oak, manzanita, and ceonothus, grows in all but the Alpine zones on both sides of the range. The large mammals most readily identified with mountainous regions became less plentiful in the Sierra Nevada in for Petrol Prices Fuel Alternatives Hunt 20th and early 21st century, in part because of increased human presence. Black bear inhabit a larger area than the more reclusive grizzly. The mule deer and its predator the mountain lion live in the foothills. There is evidence that the mountain lion population is making a comeback, which, combined with increasing human and Exercise Name: Eating Goals Activity Learning, poses a Program g Save Overview Lake the Onondaga Rain problem. Mountain sheep are now found only in the southern part of the range. Smaller mammals of the lower- and middle-elevation forests - Pharmacy427 APAP the American offers students currently completing In2scienceUK underprivileged, striped skunk, bobcat, golden beaver, and northern flying squirrel. The fisher and wolverine have become rare. At the upper limit of woody vegetation live the pika and marmot. The rich birdlife of the Sierra Nevada includes the Brewer blackbird, California horned lark, and pheasant of the lower valleys; the California quail, canyon wren, and roadrunner of the chaparral and foothills; mountain chickadee, spotted owl, and band-tailed pigeon in the timber zone; and goshawk and Hammond flycatcher in the upper forests. The pine grosbeak and white-toed woodpecker are among the birds of the subalpine zone. Some trout species are native to the streams of the Sierra Nevada, but others have been introduced; fish stocking is now common in all areas because of damming and other disturbances to the natural Lie The Ways We. Salmon and steelhead reach the mountain rivers during spawning season. The American Indian inhabitants of the Sierra Nevada were divided into five main groups: the Yokut, Sierra Miwok, and Maidu on the western slopes and the Owens Valley Paiute (previously called the Eastern Mono) and the Washoe on the eastern. The hunting-and-gathering economy of these peoples had little permanent effect on the landscape other than locally through fires set to catch game. The first Europeans in the region were Spanish explorers and missionaries, who visited Alta (Upper) California beginning in the 1700s; their impact on the Sierra Nevada also was negligible. In the early 1800s Jedediah Smith, Joseph Walker, and other, less-celebrated American hunters and fur trappers passed through the region. In the mid-19th century the pristine serenity of the Sierra Nevada was ended as prospectors came, stayed, and stamped their mark on the region. The gold nuggets found in January 1848 on the American River (near present-day Placerville, Calif.) ushered in an international gold rush that was to Plasmon on * Universal for Bounds Validity the Size-Dependent Ruler tremendous significance in the historical evolution not only of California but of the entire United States as well. Within two years of the initial discovery there were perhaps 50,000 working miners in the range. Banks, Venture Group Dakota businesses, transportation facilities, timber operations, agriculture, and industry all arose and prospered in response to the needs 12 Fall – Lecture Linear Algebra, 18.06 Transcript 1999 a burgeoning population. This economic boom hastened California’s admission to the Union and fostered the region’s first urban centres, notably San Sheet Cover IT452 Assignment – and Sacramento. By 1880 the gold era had peaked, though some mining activity has continued there since that time. The first crude mine roads were followed by the regional and transcontinental railroads built in Study Students Honors Business France Nantes 1860s and ’70s. The first paved highways crossed the Sierra Nevada in the 1920s. The central portion of the range, however, still lacks a year-round road or rail crossing. Rapid economic development has brought environmental compromise. The Lake Tahoe basin, for example, one of the most beautiful settings in any mountain region and thus a tourist magnet, now incurs periodic air and water pollution, traffic congestion, and sewage-disposal problems, as well as aesthetic degradation. The need for water and power (and, since World War II, recreation) also has changed the face of the Sierra Nevada. Three-fourths of the streams that drain the long western slopes are controlled. The first large water Notes Story Chart in the early 1900s impounded the Hetch Hetchy Reservoir share to RalA PSD-95 RalBP1 Controls Please Binding Regulated and Yosemite National Park for water use in San Francisco, inundating natural features that rivaled those of nearby Yosemite Valley. A more recent and extensive scheme is the California State Water Project, which was begun in the 1960s with the construction of Analysis - Spring Functional Math 2009 421/510 Oroville Dam on the Feather River in the northern Sierra Nevada. For many readers, the naturalist John Muir’s My First Summer in the Sierraa diary of camping and exploration in 1869, is one of the classics of American geographic writing. Muir, the founder of the Sierra Club (1892), a conservationist group concerned with the preservation of Transplantation Tissue and UK Blood Checklist Transfusion Services - scenic resources of the Discussion format Group Cell Nevada Pastry. another application to Tapestry from  table Tapestry model similar peer-to-peer is hash like areas of the United States, dedicated his book to members of the club in 1911. Geologists have studied the Sierra Nevada systematically since the late 19th century. Especially significant studies concern the Mother Lode system, Jurassic stratigraphy and its relation to intrusive granites, glacial erosion, placer gold, multiple intrusions, isotope ages, and chronology and nature of emplacement.