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Middle Fork Willamette River
The Middle Fork Willamette River is one of several forks that unite to form the Willamette River in the western part of the U.S. state of Oregon. It is approximately long, draining an area of the Cascade Range southeast of Eugene, which is at the southern end of the Willamette Valley. Course The Middle Fork Willamette River is formed in northeastern Douglas County by the joining of several small headwater streams near Emigrant Pass. The river flows generally north into Lane County, through the Calapooya Mountains, to the vicinity of Eugene and Springfield, where it joins the Coast Fork Willamette River to form the Willamette River proper. Just south (upriver) of Oakridge, the Middle Fork is impounded in Hills Creek Reservoir, created by Hills Creek Dam. Below the dam, the river receives Salt Creek and then Salmon Creek at Oakridge. At Westfir, the Middle Fork is joined by the North Fork Middle Fork Willamette River from the right bank. Below this confluence, the Middle Fo ... [...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] |
Oakridge, Oregon
Oakridge is a city in Lane County, Oregon, United States. The population was 3,205 as of the 2010 census. It is located east of Westfir on Oregon Route 58, about east of Eugene and southeast of Portland. Surrounded by the Willamette National Forest and the Cascade Range, Oakridge is popular with outdoor enthusiasts for its hiking, mountain biking, wildflowers, fly fishing, birding, watersports, and the nearby Willamette Pass Resort. The city was originally a community called "Hazeldell", and its post office was established on July 26, 1888. When a station on the Southern Pacific Railroad opened in May 1912, it was named "Oak Ridge" by a railroad executive for the surrounding topography, and on July 19 of that year the name was changed to be spelled as a single word. The economy of Oakridge and nearby Westfir is centered on recreation. Since the lumber mills closed in the 1980s, the economy has been transitioning, with a new general store opening in 2010, a bakery i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rivers Of Douglas County, Oregon
A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of water. Small rivers can be referred to using names such as creek, brook, rivulet, and rill. There are no official definitions for the generic term river as applied to geographic features, although in some countries or communities a stream is defined by its size. Many names for small rivers are specific to geographic location; examples are "run" in some parts of the United States, "burn" in Scotland and northeast England, and "beck" in northern England. Sometimes a river is defined as being larger than a creek, but not always: the language is vague. Rivers are part of the water cycle. Water generally collects in a river from precipitation through a drainage basin from surface runoff and other sources such as groundwater recharge, springs, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tributaries Of The Willamette River
A tributary, or affluent, is a stream or river that flows into a larger stream or main stem (or parent) river or a lake. A tributary does not flow directly into a sea or ocean. Tributaries and the main stem river drain the surrounding drainage basin of its surface water and groundwater, leading the water out into an ocean. The Irtysh is a chief tributary of the Ob river and is also the longest tributary river in the world with a length of . The Madeira River is the largest tributary river by volume in the world with an average discharge of . A confluence, where two or more bodies of water meet, usually refers to the joining of tributaries. The opposite to a tributary is a distributary, a river or stream that branches off from and flows away from the main stream. PhysicalGeography.net, Michael Pidwirny & Scott ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tributaries Of The Columbia River
Tributaries and sub-tributaries are hierarchically listed in order from the mouth of the Columbia River upstream. Major dams and reservoir lakes are also noted. List of major tributaries The main river and tributaries are (sorted in order from the mouth heading upstream): * Wallacut River (Washington) * Chinook River (Washington) * Alder Creek (Oregon) ** Tansy Creek (Oregon) * Skipanon River (Oregon) * Youngs River (Oregon) ** Lewis and Clark River (Oregon) ** Wallooskee River (Oregon) ** Klaskanine River (Oregon) * Frank Born Creek (Washington) * Sisson Creek (Washington) * Deep River (Washington) * Grays River (Washington) * Crooked Creek (Washington) * Elochoman River (Washington) * John Day River (Oregon) * Eskeline Creek (Oregon) * Hillcrest Creek (Oregon) * Big Creek (Oregon) ** Little Creek (Oregon) * Gnat Creek (Oregon) * Kelly Creek (Oregon) ** Spear Creek (Oregon) * Hunt Creek (Oregon) * Driscoll Slough (Oregon) * Westport Slough (Oregon) ** Plymp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Longest Streams Of Oregon
Seventy-seven rivers and creeks of at least 50 miles (80 km) in total length are the longest streams of the U.S. state of Oregon. All of these streams originate in the United States except the longest, the Columbia, which begins in the Canadian province of British Columbia and flows 1,249 miles (2,010 km) to the sea near Astoria. The second-longest, the Snake River, which at is the only other stream of more than on the list, begins in Wyoming and flows through parts of Idaho and Washington, as well as Oregon. Some of the other streams also cross borders between Oregon and California, Nevada, Idaho, or Washington, but the majority flow entirely within Oregon. The ''Atlas of Oregon'' ranks 31 rivers in the state by average streamflow; the top five are the Columbia, Snake, Willamette, Santiam, and Umpqua. Not all Oregon rivers with high average flows are on this list of longest streams because neither their main stems nor any of their tributaries (includin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Rivers Of Oregon
This is a partial listing of rivers in the state of Oregon, United States. This list of Oregon rivers is organized alphabetically and by tributary structure. The list may also include streams known as creeks, brooks, forks, branches and prongs, as well as sloughs and channels. A list of rivers of the Americas and a list of Pacific Ocean coast rivers of the Americas are also available, as is a list of Oregon lakes. __TOC__ Alphabetical listing *Abiqua Creek * Agency Creek (South Yamhill River) *Alsea River * Amazon Creek * Ana River *Applegate River * Ash Creek *Ashland Creek *Balch Creek * Bear Creek *Big Butte Creek *Big Marsh Creek * Big River * Birch Creek * Blue River *Breitenbush River *Bridge Creek (John Day River) * Buck Hollow River * Bull Run River * Bully Creek * Burnt River * Butte Creek *Calapooia River * Catherine Creek *Chetco River *Chewaucan River *Clackamas River *Clatskanie River * Clear Fork * Clearwater River *Coast Fork Willamette River *Collawash River * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lost Creek (Middle Fork Willamette River)
Lost Creek is a tributary of the Middle Fork Willamette River in the U.S. state of Oregon. It begins in the Cascade Range foothills between Dorena Lake and Lookout Point Lake and flows generally north to meet the river downstream of Lowell. Along the way, it passes by the rural community of Dexter, then under Oregon Route 58, and through part of Elijah Bristow State Park. Named tributaries of Lost Creek from source to mouth are Guiley, Gossage, Carr, Middle, Anthony, and Wagner creeks. The map includes mile markers along the Middle Fork Willamette River. Name ''Oregon Geographic Names'' (OGN) says the north–south valley through which the creek flows was known as Lost Valley during the days of early settlement. ''Illustrated History of Lane County'' says Elijah Bristow named the valley, according to OGN, which says the name probably stemmed from the valley's seclusion. Covered bridge The Parvin Bridge, a covered bridge, spans the creek south of Dexter. The , single-lane str ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Main Stem
In hydrology, a mainstem (or trunk) is "the primary downstream segment of a river, as contrasted to its tributaries". Water enters the mainstem from the river's drainage basin, the land area through which the mainstem and its tributaries flow.. A drainage basin may also be referred to as a ''watershed'' or ''catchment''. Hydrological classification systems assign numbers to tributaries and mainstems within a drainage basin. In the Strahler number, a modification of a system devised by Robert E. Horton in 1945, channels with no tributaries are called "first-order" streams. When two first-order streams meet, they are said to form a second-order stream; when two second-order streams meet, they form a third-order stream, and so on. In the Horton system, the entire mainstem of a drainage basin was assigned the highest number in that basin. However, in the Strahler system, adopted in 1957, only that part of the mainstem below the tributary of the next highest rank gets the highest num ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fall Creek (Middle Fork Willamette River)
Fall Creek is a tributary of the Middle Fork Willamette River in Lane County in the U.S. state of Oregon. Beginning in the Cascade Range, the creek flows generally west through the Willamette National Forest to enter the Middle Fork upstream of Jasper, southeast of Springfield and Eugene. The map includes mile markers along the creek to the point. The remainder is an estimate based on map scale and ruler. Along its upper and middle reaches, the creek flows by many campgrounds, picnic sites, a state park, and the Fall Creek National National Recreation Trail. Fall Creek Reservoir is a man-made reservoir where the stream is impounded by Fall Creek Dam. Below the dam, the small communities of Unity and Fall Creek lie along the lower reaches. Two covered bridges carry rural roads over the creek, one at Unity and the other further downstream. Tributaries Named tributaries of Fall Creek from source to mouth are Buzzard, Briem, Saturn, Delp, and Ninemile creeks. Then come Gold, Pac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dexter Reservoir
Dexter Reservoir (also known as Dexter Lake) is a reservoir in Lane County, in the U.S. state of Oregon. It is about southeast of Eugene on the Middle Fork Willamette River, immediately downriver from Lookout Point Lake, another reservoir. The communities of Dexter and Lowell are near the lake. Oregon Route 58 follows the lake's southern shore, while Pengra Road parallels the lake's northern shore as far east as Lowell. Dexter Dam, high, impounds up to of water in the reservoir. The powerhouse at the dam can generate 15,000 kilowatts of electricity. The lake and three adjacent state parks are used for water sports and other outdoor recreation. History The two reservoirs, Dexter and Lookout Point, were created in 1954 when the United States Army Corps of Engineers finished building the dams that contain them. Dexter exists partly to control water surges from the upstream lake during Lookout Point's production of hydroelectricity. Dexter Lake's water levels vary greatly, w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lookout Point Reservoir
Lookout Point Lake (also Lookout Point Reservoir) is a large reservoir on the Middle Fork Willamette River in Lane County, Oregon, United States. It was created in 1953 with the construction of Lookout Point Dam. The downstream end of the reservoir is about southeast of Eugene. It lies immediately upriver from Dexter Lake, another reservoir. The city of Lowell is nearby, along the north shore of Dexter Lake. Oregon Route 58 follows the lake's southern shore and Boundary Road the northern shore. The lake, about long, continues upriver to within about of Oakridge. Lookout Point Dam, high, impounds up to of water. It helps control flooding, generates electricity, and provides a place for boating and other outdoor recreation. History The two reservoirs, Lookout Point and Dexter, were created in the early 1950s, when the United States Army Corps of Engineers finished building the dams that contain them. Dexter exists partly as a re-regulating basin that controls water surges ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
