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Tinayguk River
The Tinayguk River is a tributary of the North Fork Koyukuk River in the U.S. state of Alaska. Heading in the Endicott Mountains of the Brooks Range, the river flows generally west then south to meet the larger river about north of Bettles. In 1980, the entire river was designated "wild" and added to the National Wild and Scenic Rivers System. The designation means that the Tinayguk is unpolluted, free-flowing and generally inaccessible except by trail and that its watershed is essentially primitive. The river's name means ''Moose'' in Inupiat. In 1930, forester Robert "Bob" Marshall recommended it as an alternative to ''West Fork'', a local name that Marshall considered over-used. Boating Although whitewater enthusiasts sometimes run the river in small rafts or inflatable canoes or kayaks, it is remote, hazardous, and difficult to reach. It is a small one-channel river that drops over its first and an average of over the rest of its course. The upper reaches are rated Cla ... [...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] |
Bob Marshall (wilderness Activist)
Robert Marshall (January 2, 1901November 11, 1939) was an American forester, writer and wilderness activist who is best remembered as the person who spearheaded the 1935 founding of the Wilderness Society in the United States. Marshall developed a love for the outdoors as a young child. He was an avid hiker and climber who visited the Adirondack Mountains frequently during his youth, ultimately becoming one of the first Adirondack Forty-Sixers. He also traveled to the Brooks Range of the far northern Alaskan wilderness. He wrote numerous articles and books about his travels, including the bestselling 1933 book '' Arctic Village.'' A scientist with a PhD in plant physiology, Marshall became independently wealthy after the death of his father in 1929. He had started his outdoor career in 1925 as forester with the U.S. Forest Service. He used his financial independence for expeditions to Alaska and other wilderness areas. Later he held two significant public appointed posts: chie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gates Of The Arctic National Park And Preserve
Gates of the Arctic National Park and Preserve is an American national park that protects portions of the Brooks Range in northern Alaska. The park is the northernmost national park in the United States, situated entirely north of the Arctic Circle. The area of the park and preserve is the second largest in the U.S. at , slightly larger in area than Belgium; the National Park portion is the second largest in the U.S., after the National Park portion of Wrangell–St. Elias National Park and Preserve. Gates of the Arctic was initially designated as a national monument on December 1, 1978, before being redesignated as a national park and preserve upon passage of the Alaska National Interest Lands Conservation Act in 1980. A large part of the park has additional protection as the Gates of the Arctic Wilderness which covers . The wilderness area adjoins the Noatak Wilderness. Together, they form the largest contiguous wilderness in the United States. Park purpose According to the Nat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rivers Of Yukon–Koyukuk Census Area, Alaska
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, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rivers Of Alaska
This is a List of rivers in Alaska, which are at least fifth-order according to the Strahler method of stream classification, and an incomplete list of otherwise-notable rivers and streams. Alaska has more than 12,000 rivers, and thousands more streams and creeks. According to United States Geological Survey Geographic Names Information System, Alaska has about 9,728 officially named rivers, creeks, and streams. The length of the river is given if it is available from the United States Geological Survey Geographic Names Information System (GNIS). By drainage basin This list is arranged by drainage basin, with respective tributaries ordered from mouth to source, and indented under their downstream parent's name. Arctic Ocean *Firth River – * Kongakut River – * Aichilik River – * Jago River – * Okpilak River – * Hulahula River – * Sadlerochit River – *Canning River – ** Marsh Fork Canning River – * Shaviovik River – ** Kavik River – * Kadleroshili ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Rivers Of Alaska
This is a List of rivers in Alaska, which are at least fifth-order according to the Strahler method of stream classification, and an incomplete list of otherwise-notable rivers and streams. Alaska has more than 12,000 rivers, and thousands more streams and creeks. According to United States Geological Survey Geographic Names Information System, Alaska has about 9,728 officially named rivers, creeks, and streams. The length of the river is given if it is available from the United States Geological Survey Geographic Names Information System (GNIS). By drainage basin This list is arranged by drainage basin, with respective tributaries ordered from mouth to source, and indented under their downstream parent's name. Arctic Ocean *Firth River – * Kongakut River – * Aichilik River – * Jago River – * Okpilak River – * Hulahula River – * Sadlerochit River – *Canning River – ** Marsh Fork Canning River – * Shaviovik River – ** Kavik River – * Kadleroshili ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of National Wild And Scenic Rivers
This is a list of the designated National Wild and Scenic Rivers in the United States. Each river has been designated by Congress, or, if certain requirements were met, the Secretary of the Interior. A designation may include multiple watercourses; for example, the Saint Croix National Scenic Riverway includes the Namekagon River as well as the St. Croix River. Rivers are managed by one or more federal, state, local government agencies. Only federal agencies are listed in this table. Abbreviations used are: *USACE = U.S. Army Corps of Engineers *BLM = Bureau of Land Management *NPS = National Park Service *USFS = United States Forest Service *USFWS = United States Fish and Wildlife Service Gallery Oregon Salmon River Clackamas County from bridge looking west P1651.jpeg, Salmon River in Oregon Ontonagon River.jpg, Ontonagon River, Michigan Wilson Creek-27527-1.jpg, Wilson Creek Red River of New Mexico Picture 2010.jpg, Red River, New Mexico Lower Flathead River.jpg, lower Flath ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aufeis
Aufeis, ( ), (German for "ice on top") is a sheet-like mass of layered ice that forms from successive flows of ground or river water during freezing temperatures. This form of ice is also called overflow, icings, or the Russian term, naled. The term was first used in 1859 by Alexander von Middendorff following his observations of the phenomenon in northern Siberia. When thawed, ''aufeis'' leave footprints in the form of ''aufeis'' glades or, perhaps more accurately in tundra habitats, “''aufeis'' barrens, because of the near absence of vascular plants due to ice cover during much of the growing season. Etymology Aufeis literally translates from German to “on ice”. In 1859 the Baltic German scientist and explorer Alexander von Middendorff used this term to describe his observations of the phenomenon in northern Siberia.Ashton, George D. 1986. River and lake ice engineering. Chelsea, Michigan, USA: Book Crafters, Inc. It is also called ''overflow'', ''icings'', or the Russia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whitewater
Whitewater forms in a rapid context, in particular, when a river's gradient changes enough to generate so much turbulence that air is trapped within the water. This forms an unstable current that froths, making the water appear opaque and white. The term "whitewater" also has a broader meaning, applying to any river or creek that has a significant number of rapids. The term is also used as an adjective describing boating on such rivers, such as whitewater canoeing or whitewater kayaking. Fast rivers Four factors, separately or in combination, can create rapids: gradient, constriction, obstruction, and flow rate. Gradient, constriction, and obstruction are streambed topography factors and are relatively consistent. Flow rate is dependent upon both seasonal variation in precipitation and snowmelt and upon release rates of upstream dams. Streambed topography Streambed topography is the primary factor in creating rapids, and is generally consistent over time. Increased f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alaska
Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S., it borders the Canadian province of British Columbia and the Yukon territory to the east; it also shares a maritime border with the Russian Federation's Chukotka Autonomous Okrug to the west, just across the Bering Strait. To the north are the Chukchi and Beaufort Seas of the Arctic Ocean, while the Pacific Ocean lies to the south and southwest. Alaska is by far the largest U.S. state by area, comprising more total area than the next three largest states (Texas, California, and Montana) combined. It represents the seventh-largest subnational division in the world. It is the third-least populous and the most sparsely populated state, but by far the continent's most populous territory located mostly north of the 60th parallel, with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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