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Molalla River
The Molalla River is a tributary of the Willamette River in the northwestern part of Oregon in the United States. Flowing northwest from the Cascade Range through Table Rock Wilderness, it passes the city of Molalla before entering the larger river near Canby. The Molalla is the largest Willamette tributary unblocked by a dam. Course The river's headwaters are in Clackamas County, near the Table Rock Wilderness, in the Cascade Range. Flowing generally north-northwest from the mountains, the river enters the Willamette Valley and flows past the city of Molalla. It is joined by the Pudding River shortly before entering the Willamette near the city of Canby. The confluence is about from the Willamette's mouth on the Columbia River. The map includes mile markers along the Willamette River and most of the Molalla River. The Molalla River is the largest free-flowing tributary of the Willamette. Named tributaries from source to mouth are Henry, Ogle, Mining Iron, Lake, Sco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Molalla River State Park
The Molalla River State Park is located in U.S. state of Oregon. It is a few miles north of Canby, and half a mile from the Canby Ferry. The park is south of the Willamette River and east of the Molalla River, at the confluence of the Pudding, Molalla and Willamette rivers. The Pudding River flows into the Molalla from the west, just before the Molalla joins the Willamette. The floodplains of these rivers provide important habitat for waterfowl, wading birds, deer, small mammals, reptiles and amphibians. A blue heron rookery, one of the largest in the Willamette Valley, is located in Molalla River State Park. Gallery File:View_of_the_Molalla_River_from_walking_trail,_of_Molalla_River_State_Park,_Oregon.jpg, View of Molalla River from the walking trail File:Autumn play - Molalla River SP Oregon.jpg, Playing in the autumn leaves File:Beginning_of_walking_trail_at_Molalla_River_State_Park,_Oregon.jpg, Beginning of the walking trail, at parking lot File:Molalla River SP horsesho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Molala People
The Molala are a Native American people of Oregon that originally resided in the Western Cascades. There are few recorded sources about the Molala, the majority being unpublished manuscripts. This assortment includes the works of Albert S. Gatschet, Franz Boas, Leo J. Frachtenberg, Philip Drucker, Melville Jacobs, and Leslie Spier. Descendants of the Molala reside on the Confederated Tribes of the Grand Ronde Community of Oregon, Confederated Tribes of Siletz Indians, and the Klamath Tribes. In the 1950s 141 of the 882 Grand Ronde Reservation members claimed Molala descent. Origin of name The designation Molala is considered to have originated from the Clackamas ''muláliš''. Variants in written literature include ''Molalla'', ''Molallie,'' ''Mólale'', ''Molále'', ''Molele'', ''Moolalle''. Related terms used by neighboring indigenous included ''mólališ'' by the Wasco and Tenino, and ''mulé•lis'' by the Kalapuyans. The Tenino additionally referred to the Molalas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Ogle Creek
Ogle Creek is a headwaters tributary, about long, of the Molalla River in the northwestern part of Oregon in the United States. From its source in the Cascade Range, it flows north from far-northern Marion County into Clackamas County near Ogle Mountain. From there it continues north into the river about above its confluence with the Willamette River. The map includes mile markers along most of the Molalla River. Ogle Creek was named for Bob Ogle, a Molalla prospector who found gold along the creek in 1862. An Oregon City Mining Company employee had found placer gold along the upper Molalla in 1860. Over the next 40 years, many others filed mining claims in the Molalla watershed. The biggest claimant, the Ogle Mountain Mining Company, operated the Ogle Mountain Mine between 1903 and 1915. Limited mining continued here until 1953, when Weyerhaeuser bought the land for timber. See also *List of rivers of Oregon This is a partial listing of rivers in the state of Oregon, Unit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Oregon Route 99E
Oregon Route 99E is an Oregon state highway that runs between Junction City, Oregon and an interchange with I-5 just south of the Oregon/ Washington border, in Portland. It, along with OR 99W, makes up a split of OR 99 in the northern part of the state. This split existed when the route was U.S. Route 99, when the two branches were U.S. 99W and U.S. 99E. (Another such split occurred in California, but with the decommissioning of U.S. 99, that state elected to rename its U.S. 99W as Interstate 5, rather than preserve the directional suffix.) Currently, OR 99E and OR 99W do not reconvene at a northern junction in Oregon; OR 99W has been truncated from its original route, and ends in North Portland at an interchange with OR 99E and Interstate 5; nor is OR 99 (without a suffix) signed anywhere in Portland. Route description OR 99E has its southern terminus in Junction City. Almost immediately after leaving the city limits the route crosses the Willamette River, and serv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
River Mile
A river mile is a measure of distance in miles along a river from its river mouth, mouth. River mile numbers begin at zero and increase further upstream. The corresponding metric unit using kilometre, kilometers is the river kilometer. They are analogous to vehicle roadway mile markers, except that river miles are rarely marked on the physical river; instead they are marked on navigation charts, and topographic maps. Riverfront properties are sometimes partially legally described by their river mile. The river mile is not the same as the length of the river, rather it is a means of locating any feature along the river relative to its distance from the mouth, when measured along the course (or navigable channel) of the river. River mile zero may not be exactly at the mouth. For example, the Willamette River (which discharges into the Columbia River) has its river mile zero at the edge of the navigable channel in the Columbia, some beyond the mouth. Also, the river mile zero for t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
River Source
The headwater of a river or stream is the geographical point of its beginning, specifically where surface runoff water begins to accumulate into a flowing channel of water. A river or stream into which one or many tributary rivers or streams flows has many headwaters, these being all of the individual headwaters of its tributaries. Each headwater is one of the river or stream's sources, as it is the place where surface runoffs from rainwater, meltwater, or spring water begin accumulating into a more substantial and consistent flow that becomes a Strahler number, first-order tributary of that river or stream. The tributary with the longest channel (geography), channel of all the tributaries to a river or stream, such length measured from that tributary's headwater to its mouth where it discharges into the river or stream, is the main stem of the river or stream in question. Definition The United States Geological Survey (USGS) states that a river's "length may be considered to be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Confluence
In geography, a confluence (also ''conflux'') occurs where two or more watercourses join to form a single channel (geography), channel. A confluence can occur in several configurations: at the point where a tributary joins a larger river (main stem); or where two streams meet to become the river source, source of a river of a new name (such as the confluence of the Monongahela River, Monongahela and Allegheny River, Allegheny rivers, forming the Ohio River); or where two separated channels of a river (forming a river island) rejoin downstream from their point of separation. Scientific study Confluences are studied in a variety of sciences. Hydrology studies the characteristic flow patterns of confluences and how they give rise to patterns of erosion, bars, and scour pools. The water flows and their consequences are often studied with mathematical models. Confluences are relevant to the distribution of living organisms (i.e., ecology) as well; "the general pattern [downstream o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Splash Dam
A splash dam was a temporary wooden dam used to raise the water level in streams to float logs downstream to sawmills. By impounding water and allowing it to be released on the log drive's schedule, these dams allowed many more logs to be brought to market than the natural flow of the stream allowed. Water releases from multiple splash dams on tributaries were also often combined to maximize the number of logs floated throughout a given watershed. Construction Splash dams were typically constructed of logs or boards, which formed cribs that were then filled with stones and earth. They could be anywhere from to several hundred feet wide and were used from one to several years. A splash dam had to be sited on a section of the stream that allowed as large a body of water to accumulate behind the dam as possible. Behind the dam logs were transported to the creek and its banks, often along log slides. (No ISBN) The splash dam was equipped with a chute to allow water and logs to escap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Logging
Logging is the process of cutting, processing, and moving trees to a location for transport. It may include skidder, skidding, on-site processing, and loading of trees or trunk (botany), logs onto logging truck, trucksSociety of American Foresters, 1998. Dictionary of Forestry. or flatcar#Skeleton car, skeleton cars. In forestry, the term logging is sometimes used narrowly to describe the logistics of moving wood from the stump to somewhere outside the forest, usually a sawmill or a lumber yard. In common usage, however, the term may cover a range of forestry or silviculture activities. Logging is the beginning of a supply chain that provides raw material for many products societies worldwide use for housing, construction, energy, and consumer paper products. Logging systems are a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
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] [Amazon] |
Gold Mining
Gold mining is the extraction of gold by mining. Historically, mining gold from Alluvium, alluvial deposits used manual separation processes, such as gold panning. The expansion of gold mining to ores that are not on the surface has led to more complex extraction processes such as pit mining and gold cyanidation. In the 20th and 21st centuries, most volume of mining was done by large corporations. However, the value of gold has led to millions of small, Artisanal mining, artisanal miners in many parts of the Global South. Like all mining, Mining#Human rights, human rights and Environmental effects of mining, environmental issues are common in the gold mining industry, and can result in environmental conflict. In mines with less regulation, health and safety risks are much higher. History The exact date that humans first began to mine gold is unknown, but some of the oldest known gold artifacts were found in the Varna Necropolis in Bulgaria. The graves of the necropolis were ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Donation Land Claim Act
The Donation Land Claim Act of 1850, sometimes known as the Donation Land Act, was a statute enacted by the United States Congress in late 1850, intended to promote homestead settlements in the Oregon Territory. It followed the Distribution-Preemption Act 1841. The law, a forerunner of the later Homestead Act, brought thousands of settlers into the new territory, swelling their ranks along the Oregon Trail. 7,437 land patents were issued under the law, which expired in late 1855. The Donation Land Claim Act allowed white men or partial Native Americans (mixed with white) who had arrived in Oregon before 1850 to work on a piece of land for four years and legally claim the land for themselves. Along with other US land grant legislation, the Donation Land Claim Act discriminated against nonwhite settlers and had the effect of dispossessing land from Native Americans. History The passage of the law was largely due to the efforts of Samuel R. Thurston, the Oregon territorial del ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
