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National Historic Landmarks In Oregon
This is a complete List of National Historic Landmarks in Oregon. The United States National Historic Landmark (NHL) program is operated under the auspices of the National Park Service, and recognizes buildings, structures, districts, objects, and similar resources nationwide according to a list of criteria of national significance. The state of Oregon is home to 17 of these landmarks, two of which extend beyond Oregon's borders into other states, as well as one site from which NHL status was withdrawn upon its destruction. Background The National Historic Landmark program is administered by the National Park Service, a branch of the U.S. Department of the Interior. The National Park Service determines which properties meet NHL criteria and makes nomination recommendations after an owner notification process. The Secretary of the Interior reviews nominations and, based on a set of predetermined criteria, makes a decision on NHL designation or a determination of eligibility f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, nine Minor Outlying Islands, and 326 Indian reservations. The United States is also in free association with three Pacific Island sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Republic of Palau. It is the world's third-largest country by both land and total area. It shares land borders with Canada to its north and with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the most populous country in the Americas and the third most populous in the world. The national capital of the United States is Washington, D.C. and its most populous city and principal financial center is New York City. Paleo-Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydroelectricity
Hydroelectricity, or hydroelectric power, is Electricity generation, electricity generated from hydropower (water power). Hydropower supplies one sixth of the world's electricity, almost 4500 TWh in 2020, which is more than all other Renewable energy, renewable sources combined and also more than nuclear power. Hydropower can provide large amounts of Low-carbon power, low-carbon electricity on demand, making it a key element for creating secure and clean electricity supply systems. A hydroelectric power station that has a dam and reservoir is a flexible source, since the amount of electricity produced can be increased or decreased in seconds or minutes in response to varying electricity demand. Once a hydroelectric complex is constructed, it produces no direct waste, and almost always emits considerably less greenhouse gas than fossil fuel-powered energy plants. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Design
A design is a plan or specification for the construction of an object or system or for the implementation of an activity or process or the result of that plan or specification in the form of a prototype, product, or process. The verb ''to design'' expresses the process of developing a design. In some cases, the direct construction of an object without an explicit prior plan (such as in craftwork, some engineering, coding, and graphic design) may also be considered to be a design activity. The design usually has to satisfy certain goals and constraints; may take into account aesthetic, functional, economic, or socio-political considerations; and is expected to interact with a certain Environment (systems), environment. Typical examples of designs include architectural drawing, architectural and engineering drawing, engineering drawings, circuit diagrams, Pattern (sewing), sewing patterns and less tangible artefacts such as business process models. Designing People who produce designs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Highway
A highway is any public or private road or other public way on land. It is used for major roads, but also includes other public roads and public tracks. In some areas of the United States, it is used as an equivalent term to controlled-access highway, or a translation for ''autobahn'', '' autoroute'', etc. According to Merriam Webster, the use of the term predates the 12th century. According to Etymonline, "high" is in the sense of "main". In North American and Australian English, major roads such as controlled-access highways or arterial roads are often state highways (Canada: provincial highways). Other roads may be designated "county highways" in the US and Ontario. These classifications refer to the level of government (state, provincial, county) that maintains the roadway. In British English, "highway" is primarily a legal term. Everyday use normally implies roads, while the legal use covers any route or path with a public right of access, including footpaths etc. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wasco County, Oregon
Wasco County is one of the 36 counties in the U.S. state of Oregon. As of the 2020 census, the population was 25,213. Its county seat is The Dalles. The county is named for a local tribe of Native Americans, the Wasco, a Chinook tribe who live on the south side of the Columbia River. It is near the Washington state line. Wasco County comprises The Dalles Micropolitan Statistical Area. History Celilo Falls on the Columbia River served as a gathering place and major trading center for the local Native Americans, including the Wasco, Paiute, and Warm Springs tribes, for thousands of years. These rapids came to be named ''Les Grandes Dalles de la Columbia'' or "The Great Falls of the Columbia" by the French Canadian fur traders. The Dalles initially served as a way station on the Oregon Trail as it approached the Willamette Valley. The construction of the Barlow Road over the Cascade Range in 1845, and the Donation Land Claim Act of 1850 encouraged families to settle in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hood River County, Oregon
Hood River County is one of the 36 counties in the U.S. state of Oregon. As of the 2020 census, the population was 23,977. The county seat is Hood River. The county was established in 1908 and is named for the Hood River, a tributary of the Columbia River. Hood River County comprises the Hood River, OR Micropolitan Statistical Area. The Hood River Valley produces apples, pears, and cherries. Situated between Mount Hood and the Columbia River in the middle of the Columbia River Gorge, Hood River County is a popular destination for outdoor enthusiasts, such as windsurfers, mountain-bikers, skiers, hikers, kayakers, and many more. History The first permanent settlers in present-day Hood River County filed a donation land claim in 1854. The first school was built in 1863 and a road from The Dalles was completed in 1867. By 1880 there were 17 families living in the valley. By the latter part of the nineteenth century farmers of Japanese, Finnish, German, and French ethnicity ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mosier, Oregon
Mosier is a city along the Columbia River in Wasco County, Oregon, United States. The population was 433 at the 2010 census. History Mosier was first settled in 1854 and incorporated as a city in 1914. The building now known as the post office was at that time the bank, and the original safe is still intact on-site. Mosier School was built in 1920 and until 1963 was a 1st–12th grade 1A school. From 1964 to 2002 it functioned as part of the Chenowith School District as an elementary school that ranged from kindergarten to fifth grade. In January 2003, the Chenowith School District approved the charter application for Mosier Elementary to become a charter school known as Mosier Community School. On June 3, 2016, a 96-car oil train derailed near Mosier. 11 cars derailed and at least one caught on fire, only 20 feet away from the city's sewage treatment facility. Geography According to the United States Census Bureau, the city has a total area of , of which, is land and i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Troutdale, Oregon
Troutdale is a city in Multnomah County, Oregon, United States, immediately north of Gresham and east of Wood Village. As of the 2010 census, the city population was 15,962. The city serves as the western gateway to the Historic Columbia River Highway, the Mount Hood Scenic Byway, and the Columbia River Gorge. It is approximately east of Portland. History The community was once known as Sandy, after the nearby Sandy River; the post office in Sandy was established in 1854 and closed in 1868. In 1873, the current city of Sandy in Clackamas County, which was formerly named "Revenue", established a different Sandy post office that is still in operation. Troutdale was named by pioneer John Harlow for the trout pond in a dale near his house. Troutdale post office was founded in 1880. In 1925, a company, the Bissinger Wool Pullery, was moved from Sellwood, Oregon, and opened for business on Macadam Road along the west bank of the Sandy River. An iconic water tower stands nearby. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hatchery
A hatchery is a facility where eggs are hatched under artificial conditions, especially those of fish, poultry or even turtles. It may be used for ex-situ conservation purposes, i.e. to breed rare or endangered species under controlled conditions; alternatively, it may be for economic reasons (i.e. to enhance food supplies or fishery resources). Fish hatcheries Fish hatcheries are used to cultivate and breed a large number of fish in an enclosed environment. Fish farms use hatcheries to cultivate fish to sell for food, or ornamental purposes, eliminating the need to find the fish in the wild and even providing some species outside their natural season. They raise the fish until they are ready to be eaten or sold to aquarium stores. Other hatcheries release the juvenile fish into a river, lake or the ocean to support commercial, tribal, or recreational fishing or to supplement the natural numbers of threatened or endangered species, a practice known as fish stocking. Resear ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Ladder
A fish ladder, also known as a fishway, fish pass, fish steps, or fish cannon is a structure on or around artificial and natural barriers (such as dams, locks and waterfalls) to facilitate diadromous fishes' natural migration as well as movements of potamodromous species. Most fishways enable fish to pass around the barriers by swimming and leaping up a series of relatively low steps (hence the term ''ladder'') into the waters on the other side. The velocity of water falling over the steps has to be great enough to attract the fish to the ladder, but it cannot be so great that it washes fish back downstream or exhausts them to the point of inability to continue their journey upriver. History Written reports of rough fishways date to 17th-century France, where bundles of branches were used to make steps in steep channels to bypass obstructions. A pool and weir salmon ladder was built around 1830 by James Smith, a Scottish engineer on the River Teith, near Deanston, Perthshire ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lock (water Transport)
A lock is a device used for raising and lowering boats, ships and other watercraft between stretches of water of different levels on river and canal waterways. The distinguishing feature of a lock is a fixed chamber in which the water level can be varied; whereas in a caisson lock, a boat lift, or on a canal inclined plane, it is the chamber itself (usually then called a caisson) that rises and falls. Locks are used to make a river more easily navigable, or to allow a canal to cross land that is not level. Later canals used more and larger locks to allow a more direct route to be taken. Pound lock A ''pound lock'' is most commonly used on canals and rivers today. A pound lock has a chamber with gates at both ends that control the level of water in the pound. In contrast, an earlier design with a single gate was known as a flash lock. Pound locks were first used in China during the Song Dynasty (960–1279 AD), having been pioneered by the Song politician and naval en ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Federal Government Of The United States
The federal government of the United States (U.S. federal government or U.S. government) is the national government of the United States, a federal republic located primarily in North America, composed of 50 states, a city within a federal district (the city of Washington in the District of Columbia, where most of the federal government is based), five major self-governing territories and several island possessions. The federal government, sometimes simply referred to as Washington, is composed of three distinct branches: legislative, executive, and judicial, whose powers are vested by the U.S. Constitution in the Congress, the president and the federal courts, respectively. The powers and duties of these branches are further defined by acts of Congress, including the creation of executive departments and courts inferior to the Supreme Court. Naming The full name of the republic is "United States of America". No other name appears in the Constitution, and this i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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