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Sultan River
The Sultan River is a river in Snohomish County in the U.S. state of Washington. It is a tributary of the Skykomish River, which it joins at the town of Sultan, Washington. The river is dammed in its upper third by Culmback Dam to form Spada Lake. Both the Sultan River and the town of Sultan were named by prospectors for the chief of a Snohomish sub-tribe who lived on the Skykomish River in the 1870s. His name was Tsul-tad or Tseul-tud, which was anglicized by the miners into Sultan. The Sultan River's drainage basin was subjected to intense glaciation during the Pleistocene era. The river flows through a well-defined glacially carved trench. The upper South Fork Sultan River flows through a classic U-shaped valley cut by a glacier through Quartz diorite. The Sultan's river main tributaries—the North Fork, South Fork, Elk Creek, and Williamson Creek— flow through narrow valleys to converge in the lower Sultan basin where the valley floor is relatively broad. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snohomish People
The Snohomish people (, , ) are a List of Lushootseed-speaking peoples, Lushootseed-speaking Coast Salish, Southern Coast Salish people who are Indigenous peoples, indigenous to the Puget Sound region of Washington (state), Washington State. Most Snohomish are enrolled in the Tulalip Tribes, Tulalip Tribes of Washington and reside on the reservation or nearby, although others are enrolled in other tribes, and some are members of the non-recognized Snohomish Tribe of Indians. Traditionally, the Snohomish occupied a wide area of land, including the Snohomish River, parts of Whidbey Island, Whidbey and Camano Island, Camano Islands, and the nearby coastline of Skagit Bay and Puget Sound. They had at least 25 permanent villages throughout their lands, but in 1855, signed the Treaty of Point Elliott and were relocated to the Tulalip Reservation. Although some moved to the reservation, the harsh conditions, lack of land, and oppressive policies of the United States government caused ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quartz Diorite
Quartz diorite is an igneous, plutonic ( intrusive) rock, of felsic composition, with phaneritic texture. Feldspar is present as plagioclase (typically oligoclase or andesine) with 10% or less potassium feldspar. Quartz is present at between 5 and 20% of the rock. Biotite, amphiboles and pyroxenes are common dark accessory minerals. Quartz diorite occurs in association with other granitic rock such as granodiorite, and with volcanic A volcano is commonly defined as a vent or fissure in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. On Earth, volcanoes are most often fo ... rock. In western North America a "quartz diorite line" occurs; west of this line, the dominant granitic rock is quartz diorite. References Definition with images Plutonic rocks ja:閃緑岩#石英閃緑岩 {{igneous-rock-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jackson Hydroelectric Project
The Henry M. Jackson Hydroelectric Project, or Jackson Hydro Project, is an electric power generating project on the Sultan River operated and maintained by the Snohomish County Public Utility District in Washington, co-licensed by the city of Everett, Washington. Beginning operations in 1984, the project aims to bring clean and renewable hydropower to Snohomish county. The facility consists of a single powerhouse, two main generating units, a switch-yard, and transmission lines—all of which are directly connected to the county's local 115 kV power-transmission network. The largest generating station operated by the Snohomish county PUD, the Jackson Hydro powerhouse has a total nameplate capacity of 112 megawatts, enough to power 53,200 homes, and accounts for 7 percent of the Snohomish county PUD's total power needs. The vast remainder of the Snohomish county PUD's power comes from the Chief Joseph Dam, located in eastern Washington, through long-term contracts with the Bonn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snohomish County Public Utility District
The Snohomish County Public Utility District is a public utility agency providing power to over 367,000 customers in Snohomish County and on Camano Island, Washington. It provides water service to about 23,000 customers in the northeast section of the Snohomish County. The utility is the second largest publicly owned utility in the Pacific Northwest and the 12th largest in the United States. It is the largest of 28 PUDs in the state of Washington. The PUD is the largest utility customer of the Bonneville Power Administration, a major wholesale marketer of energy in the Western United States. Clean energy projects Arlington Community Solar Project: In 2019, a 500 kilowatt solar project was installed in Arlington. The project consist of 1620 solar panels. Utility customers were offered the option of purchasing shares to cover the cost of construction and receive revenue for the sales of electricity to the utility. All shares were sold out quickly. At the time of completion it wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diversion Dam
A diversion dam is a dam that diverts all or a portion of the flow of a river from its natural course. Diversion dams do not generally impound water in a reservoir; instead, the water is diverted into an artificial water course or canal, which may be used for irrigation or return to the river after passing through hydroelectric generators, flow into a different river or be itself dammed forming an on-ground or groundwater reservoir or a storm drain. An early diversion dam is the Ancient Egyptian Sadd el-Kafara Dam at Wadi Al-Garawi, which was located about twenty five kilometres south of Cairo. Built around 2600 BC for flood control, the structure was 102 metres long at its base and 87 metres wide. It was destroyed by a flood while it was still under construction.Günther Garbrecht: "Wasserspeicher (Talsperren) in der Antike", ''Antike Welt'', 2nd special edition: ''Antiker Wasserbau'' (1986), pp.51-64 (52f.) Classification Diversion dams are a classification of dams distinc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Seattle Times
''The Seattle Times'' is an American daily newspaper based in Seattle, Washington. Founded in 1891, ''The Seattle Times'' has the largest circulation of any newspaper in the state of Washington and the Pacific Northwest region. The Seattle Times Company, which owns and publishes the paper, is mostly owned by the Blethen family, which holds 50.5% of the company; the other 49.5% is owned by the McClatchy Company. The Blethen family has owned and operated the newspaper since 1896. ''The Seattle Times'' had a longstanding rivalry with the '' Seattle Post-Intelligencer'' until the latter ceased print publication in 2009. ''The Seattle Times'' has received 11 Pulitzer Prizes and is widely renowned for its investigative journalism. History ''The Seattle Times'' originated as the ''Seattle Press-Times'', a four-page newspaper founded in 1891 with a daily circulation of 3,500, which Maine teacher and attorney Alden J. Blethen bought in 1896. Renamed the ''Seattle Daily Times'', it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earthen Dam
An embankment dam is a large artificial dam. It is typically created by the placement and compaction of a complex semi-plastic mound of various compositions of soil or rock. It has a semi-pervious waterproof natural covering for its surface and a dense, impervious core. This makes the dam impervious to surface or seepage erosion. Such a dam is composed of fragmented independent material particles. The friction and interaction of particles binds the particles together into a stable mass rather than by the use of a cementing substance. Types Embankment dams come in two types: the earth-filled dam (also called an earthen dam or terrain dam) made of compacted earth, and the rock-filled dam. A cross-section of an embankment dam shows a shape like a bank, or hill. Most have a central section or core composed of an impermeable material to stop water from seeping through the dam. The core can be of clay, concrete, or asphalt concrete. This type of dam is a good choice for sites ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Placer Mining
Placer mining () is the mining of stream bed deposits for minerals. This may be done by open-pit mining or by various surface excavating equipment or tunneling equipment. Placer mining is frequently used for precious metal deposits (particularly gold) and gemstones, both of which are often found in alluvial deposits—deposits of sand and gravel in modern or ancient stream beds, or occasionally glacial deposits. The metal or gemstones, having been moved by stream flow from an original source such as a vein, are typically only a minuscule portion of the total deposit. Since gems and heavy metals like gold are considerably denser than sand, they tend to accumulate at the base of placer deposits. Placer deposits can be as young as a few years old, such as the Canadian Queen Charlotte beach gold placer deposits, or billions of years old like the Elliot Lake uranium paleoplacer within the Huronian Supergroup in Canada. The containing material in an alluvial placer mine may be too lo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prospecting
Prospecting is the first stage of the geological analysis (followed by Mining engineering#Pre-mining, exploration) of a territory. It is the search for minerals, fossils, precious metals, or mineral specimens. It is also known as fossicking. Traditionally prospecting relied on direct observation of mineralization in rock outcrops or in sediments. Modern prospecting also includes the use of geologic, Geophysics, geophysical, and Geochemistry, geochemical tools to search for anomalies which can narrow the search area. Once an anomaly has been identified and interpreted to be a potential prospect direct observation can then be focused on this area. In some areas a prospector must also stake a claim, meaning they must erect posts with the appropriate placards on all four corners of a desired land they wish to prospect and register this claim before they may take samples. In other areas publicly held lands are open to prospecting without staking a mining claim. Historical method ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Everett, Washington
Everett (; ) is the county seat and most populous city of Snohomish County, Washington, United States. It is north of Seattle and is one of the main cities in the Seattle metropolitan area, metropolitan area and the Puget Sound region. Everett is the List of cities and towns in Washington, seventh-most populous city in the state by population, with 110,629 residents as of the 2020 United States census, 2020 census. The city is primarily situated on a peninsula at the mouth of the Snohomish River along Port Gardner Bay, an inlet of Possession Sound (itself part of Puget Sound), and extends to the south and west. The Port Gardner Peninsula has been inhabited by the Snohomish people for thousands of years, whose main settlement, , was located at Preston Point near the mouth of the river. Modern settlement in the area began with loggers and homesteaders arriving in the 1860s, but plans to build a city were not conceived until 1890. A consortium of East Coast investors seeking to bui ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glacial Lake
A glacial lake is a body of water with origins from glacier activity. They are formed when a glacier erodes the land and then melts, filling the depression created by the glacier. Formation Near the end of the last glacial period, roughly 10,000 years ago, glaciers began to retreat. A retreating glacier often left behind large deposits of ice in hollows between drumlins or hills. As the ice age ended, these melted to create lakes. These lakes are often surrounded by drumlins, along with other evidence of the glacier such as moraines, eskers and erosional features such as glacial striations, striations and chatter marks. These lakes are clearly visible in aerial photos of landforms in regions that were glaciated during the last ice age. The formation and characteristics of glacial lakes vary between location and can be classified into glacial erosion lake, ice-blocked lake, moraine-dammed lake, other glacial lake, supraglacial lake, and subglacial lake. Glacial lakes and chan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moraine
A moraine is any accumulation of unconsolidated debris (regolith and Rock (geology), rock), sometimes referred to as glacial till, that occurs in both currently and formerly glaciated regions, and that has been previously carried along by a glacier or ice sheet. It may consist of partly rounded particles ranging in size from boulders (in which case it is often referred to as boulder clay) down to gravel and sand, in a groundmass of finely-divided clayey material sometimes called glacial flour. Lateral moraines are those formed at the side of the ice flow, and terminal moraines are those formed at the foot, marking the maximum advance of the glacier. Other types of moraine include ground moraines (till-covered areas forming sheets on flat or irregular topography) and medial moraines (moraines formed where two glaciers meet). Etymology The word ''moraine'' is borrowed from French language, French , which in turn is derived from the Savoyard dialect, Savoyard Italian ('mound of e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
