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Mount Judah
Mount Judah is an 8,243-foot-elevation (2,512 meter) mountain summit in Placer County, California, United States. Description Mount Judah is located one mile southeast of Donner Pass at Sugar Bowl Ski Resort, on land managed by Tahoe National Forest. It is situated on the crest of the Sierra Nevada mountain range, with precipitation runoff from the peak draining west to South Yuba River, and east to the Truckee River. Topographic relief is modest as the summit rises above Lakeview Canyon in one mile. Neighbors include Donner Peak, to the north, Mount Disney west, and the nearest higher peak is Mount Lincoln, to the southwest. The Pacific Crest Trail traverses the west slope of the peak, providing an approach option from Donner Pass. The 4.35-mile Mt. Judah Loop Trail takes hikers across the summit, and is the most popular trail in the Donner Pass area. History This landform's toponym was officially adopted October 18, 1940, by the U.S. Board on Geographic Names to hon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Lincoln (California)
Mount Lincoln is an 8,383-foot-elevation (2,555 meter) mountain summit in Placer County, California, United States. Description Mount Lincoln is located two miles south of Donner Pass at Sugar Bowl Ski Resort, on land managed by Tahoe National Forest. It is situated on the crest of the Sierra Nevada mountain range, with precipitation runoff from the peak draining to South Yuba River, North Fork American River, and Truckee River. Topographic relief is modest as the summit rises above Onion Creek in 1.75 mile. Neighbors include Mount Disney, to the northwest, Mount Judah to the northeast, and the nearest higher peak is Anderson Peak, to the southeast. The Pacific Crest Trail traverses the east slope of the peak, providing an approach option from Donner Pass. History The California Trail, which crossed Roller Pass between Mount Lincoln and Mount Judah, was one of the wagon trails through Donner Pass used by pioneers on the way to Sutter's Fort. In the spring of 1846, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pacific Crest Trail
The Pacific Crest Trail (PCT), officially designated as the Pacific Crest National Scenic Trail, is a long-distance hiking and equestrian trail closely aligned with the highest portion of the Cascade and Sierra Nevada mountain ranges, which lie east of the U.S. Pacific coast. The trail's southern terminus is next to the Mexico–United States border, just south of Campo, California, and its northern terminus is on the Canada–US border, upon which it continues unofficially to the Windy Joe Trail within Manning Park in British Columbia; it passes through the states of California, Oregon, and Washington. The Pacific Crest Trail is long and ranges in elevation from roughly above sea level near the Bridge of the Gods on the Oregon–Washington border to at Forester Pass in the Sierra Nevada. The route passes through 25 national forests and 7 national parks. Its midpoint is near Chester, California (near Mt. Lassen), where the Sierra and Cascade mountain ranges meet. It was d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alpine Climate
Alpine climate is the typical weather (climate) for elevations above the tree line, where trees fail to grow due to cold. This climate is also referred to as a mountain climate or highland climate. Definition There are multiple definitions of alpine climate. In the Köppen climate classification, the alpine and mountain climates are part of group ''E'', along with the polar climate, where no month has a mean temperature higher than . According to the Holdridge life zone system, there are two mountain climates which prevent tree growth : a) the alpine climate, which occurs when the mean biotemperature of a location is between . The alpine climate in Holdridge system is roughly equivalent to the warmest tundra climates (ET) in the Köppen system. b) the alvar climate, the coldest mountain climate since the biotemperature is between 0 °C and 1.5 °C (biotemperature can never be below 0 °C). It corresponds more or less to the coldest tundra climates and to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Köppen Climate Classification
The Köppen climate classification is one of the most widely used climate classification systems. It was first published by German-Russian climatologist Wladimir Köppen (1846–1940) in 1884, with several later modifications by Köppen, notably in 1918 and 1936. Later, the climatologist Rudolf Geiger (1894–1981) introduced some changes to the classification system, which is thus sometimes called the Köppen–Geiger climate classification system. The Köppen climate classification divides climates into five main climate groups, with each group being divided based on seasonal precipitation and temperature patterns. The five main groups are ''A'' (tropical), ''B'' (arid), ''C'' (temperate), ''D'' (continental), and ''E'' (polar). Each group and subgroup is represented by a letter. All climates are assigned a main group (the first letter). All climates except for those in the ''E'' group are assigned a seasonal precipitation subgroup (the second letter). For example, ''Af'' indi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Donner Lake
Donner Lake is a freshwater lake in Northeast California on the eastern slope of the Sierra Nevada and about northwest of the much larger Lake Tahoe. A moraine serves as a natural dam for the lake. The lake is located in the town of Truckee, between Interstate 80 to the north and Schallenberger Ridge to the south. The tracks of the Union Pacific Railroad run along Schallenberger Ridge and closely follow the route of the original transcontinental railroad. The historic route of the Lincoln Highway, the first automobile road across America and US 40 follows the northern shoreline, then climbs to Donner Pass from where the entire lake may be viewed. Both the lake and the pass were named after the ill-fated Donner Party, which wintered involuntarily near the lake in 1846. Donner Memorial State Park is on the east end of the lake and provides campsites with access to several different beaches. There are also various hiking trails in the park. Fishing The lake's depth has been mea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Donner Memorial State Park
Donner Memorial State Park is a state park of California, US, preserving the site of the Donner Camp, where members of the ill-fated Donner Party were trapped by weather during the winter of 1846–1847. Caught without shelter or adequate supplies, members of the group resorted to cannibalism to survive. The Sierra Nevada site has been designated a National Historic Landmark. The state park contains the Emigrant Trail Museum and the Pioneer Monument dedicated to the travelers of the Emigrant Trail. Donner Memorial State Park is located outside Truckee, California. It has of hiking trails, campgrounds, and of lake frontage on Donner Lake, east of Donner Pass. The park was established in 1928. Visitor center The Donner Memorial State Park visitor center contains exhibits about the cultural history of the area, including local Native Americans, the Donner Party, and builders of the First transcontinental railroad. Near the museum is the Pioneer Monument and the Donne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Donner Party
The Donner Party, sometimes called the Donner–Reed Party, was a group of American pioneers who migrated to California in a wagon train from the Midwest. Delayed by a multitude of mishaps, they spent the winter of 1846–1847 snowbound in the Sierra Nevada mountain range. Some of the migrants resorted to cannibalism to survive, eating the bodies of those who had succumbed to starvation, sickness, and extreme cold. The Donner Party originated from Springfield, Illinois, and departed Independence, Missouri, on the Oregon Trail in the spring of 1846, behind many other pioneer families who were attempting to make the same overland trip. The journey west usually took between four and six months, but the Donner Party was slowed after electing to follow a new route called the Hastings Cutoff, which bypassed established trails and instead crossed the Rocky Mountains' Wasatch Range and the Great Salt Lake Desert in present-day Utah. The desolate and rugged terrain, and the difficultie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Springfield, Illinois
Springfield is the capital of the U.S. state of Illinois and the county seat and largest city of Sangamon County. The city's population was 114,394 at the 2020 census, which makes it the state's seventh most-populous city, the second largest outside of the Chicago metropolitan area (after Rockford), and the largest in central Illinois. Approximately 208,000 residents live in the Springfield metropolitan area. Springfield was settled by European-Americans in the late 1810s, around the time Illinois became a state. The most famous historic resident was Abraham Lincoln, who lived in Springfield from 1837 until 1861, when he went to the White House as President of the United States. Major tourist attractions include multiple sites connected with Lincoln including the Abraham Lincoln Presidential Library and Museum, Lincoln Home National Historic Site, Lincoln-Herndon Law Offices State Historic Site, and the Lincoln Tomb at Oak Ridge Cemetery. Springfield lies in a valley and pla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sutter's Fort
Sutter's Fort was a 19th-century agricultural and trade colony in the Mexican ''Alta California'' province.National Park Service"California National Historic Trail."/ref> The site of the fort was established in 1839 and originally called New Helvetia (''New Switzerland'') by its builder John Sutter, though construction of the fort proper would not begin until 1841. The fort was the first non-indigenous community in the California Central Valley. The fort is famous for its association with the Donner Party, the California Gold Rush, and the formation of the city of Sacramento, surrounding the fort. It is notable for its proximity to the end of the California Trail and Siskiyou Trails, which it served as a waystation. After gold was discovered at Sutter's Mill (also owned by John Sutter) in Coloma on January 24, 1848, the fort was abandoned. The adobe structure has been restored to its original condition and is now administered by California Department of Parks and Recreation. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California Trail
The California Trail was an emigrant trail of about across the western half of the North American continent from Missouri River towns to what is now the state of California. After it was established, the first half of the California Trail followed the same corridor of networked river valley trails as the Oregon Trail and the Mormon Trail, namely the valleys of the Platte, North Platte, and Sweetwater rivers to Wyoming. The trail has several splits and cutoffs for alternative routes around major landforms and to different destinations, with a combined length of over . Introduction By 1847, two former fur trading frontier forts marked trailheads for major alternative routes through Utah and Wyoming to Northern California. The first was Jim Bridger's Fort Bridger (est. 1842) in present-day Wyoming on the Green River, where the Mormon Trail turned southwest over the Wasatch Range to the newly established Salt Lake City, Utah. From Salt Lake the Salt Lake Cutoff (est. 1848) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tunnel No
A tunnel is an underground passageway, dug through surrounding soil, earth or rock, and enclosed except for the entrance and exit, commonly at each end. A pipeline is not a tunnel, though some recent tunnels have used immersed tube construction techniques rather than traditional tunnel boring methods. A tunnel may be for foot or vehicular road traffic, for rail traffic, or for a canal. The central portions of a rapid transit network are usually in the tunnel. Some tunnels are used as sewers or aqueducts to supply water for consumption or for hydroelectric stations. Utility tunnels are used for routing steam, chilled water, electrical power or telecommunication cables, as well as connecting buildings for convenient passage of people and equipment. Secret tunnels are built for military purposes, or by civilians for smuggling of weapons, contraband, or people. Special tunnels, such as wildlife crossings, are built to allow wildlife to cross human-made barriers safely. Tunne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snow Shed
Avalanche control or avalanche defense activities reduce the hazard avalanches pose to human life, activity, and property."Mitigation and Land Use - Avalanches" , Colorado Geological Survey Avalanche control begins with a risk assessment conducted by surveying for potential avalanche terrain by identifying geographic features such as vegetation patterns, drainages, and seasonal snow distribution that are indicative of avalanches. From the identified avalanche risks, the hazard is assessed by identifying threatened human geographic features such as roads, ski-hills, and buildings. Avalanche control programs address the avalanche hazard by formulating prevention and mitigation plans, which are then executed during the winter season. The prevention and mitigation plans combine extensive snow pack observation wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
