|
Dry Falls
Dry Falls is a scalloped precipice with four major alcoves, in central Washington scablands. This cataract complex is on the opposite side of the Upper Grand Coulee from the Columbia River, and at the head of the Lower Grand Coulee, northern end of Lenore Canyon. According to the current geological model, catastrophic flooding channeled water at 65 miles per hour (105 kph) through the Upper Grand Coulee and over this rock face at the end of the last glaciation. It is estimated that the falls were five times the width of Niagara Falls, with ten times the flow of all the current rivers in the world combined. Nearly twenty thousand years ago, as glaciers moved south through North America, an ice sheet dammed the Clark Fork River near Sandpoint, Idaho. Consequently, a significant portion of western Montana flooded, forming the gigantic Lake Missoula. About the same time, Glacial Lake Columbia was formed on the ice-dammed Columbia River behind the Okanogan lobe of the Cordi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grant County, Washington
Grant County is a county located in the U.S. state of Washington. As of the 2020 census, the population was 99,123. The county seat is Ephrata, and the largest city is Moses Lake. The county was formed out of Douglas County in February 1909 and is named for U.S. President Ulysses S. Grant. Grant County comprises the Moses Lake, WA Micropolitan Statistical Area, which is also part of the Moses Lake-Othello, WA Combined Statistical Area. History Native American cultures in the area included the Interior Salish, Wenatchi, and Okanagan. The first white settlers began to arrive in the mid-to-late-19th century, primarily with the goal of raising livestock. One government official described the area in 1879 as, "…a desolation where even the most hopeful can find nothing in its future prospects to cheer." When railroads arrived they also brought new settlers, and the economy began a shift from ranching to dryland farming. This transition required the people to have ready ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of Washington (state)
The geology of the Pacific Northwest includes the composition (including rock, minerals, and soils), structure, physical properties and the processes that shape the Pacific Northwest region of North America. The region is part of the Ring of Fire: the subduction of the Pacific and Farallon Plates under the North American Plate is responsible for many of the area's scenic features as well as some of its hazards, such as volcanoes, earthquakes, and landslides. The geology of the Pacific Northwest is vast and complex. Most of the region began forming about 200 million years ago as the North American Plate started to drift westward during the rifting of Pangaea. Since that date, the western edge of North America has grown westward as a succession of island arcs and assorted ocean-floor rocks have been added along the continental margin. There are at least five geologic provinces in the area: the Cascade Volcanoes, the Columbia Plateau, the North Cascades, the Coast Mountains, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Waterfalls
This list of notable waterfalls of the world is sorted by continent, then country, then province, state or territory. A waterfall is included if it is at least tall and has an existing Wikipedia article, or it is considered historically significant based on multiple reliable references. There is no standard way to measure the height or width of a waterfall. No ranking of waterfalls should be assumed because of the heights or widths provided in the list. Many numbers are estimated and measurements may be imprecise. See additional lists of waterfalls by List of waterfalls by height, height, List of waterfalls by flow rate, flow rate and List of waterfalls by type, type. Africa Angola * Kalandula Falls – high Burundi * Kagera waterfalls, Kagera Falls * Rusumo Falls Central African Republic * Boali, Boali Falls Chad * Gauthiot Falls Democratic Republic of the Congo * Boyoma Falls – formerly known as Stanley Falls; highest flow rate in the world * Inga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guaíra Falls
The Guairá Falls () or Guaíra Falls () were a series of immense waterfalls on the Paraná River along the border between Paraguay and Brazil. The falls ceased to exist in 1982 when they were inundated by the impoundment of the Itaipu Dam reservoir. While published figures vary, ranging from per second to per second, Guaíra's flow rate was among the greatest of any then-existing falls on Earth. The falls comprised 18 cataracts clustered in seven groups—hence their Portuguese name, ''Sete Quedas'' (Seven Falls)—near the Brazilian municipality of Guaíra, Paraná and Salto del Guairá, the easternmost city in Paraguay. The falls were located at a point where the Paraná River was forced through a narrow gorge. At the head of the falls, the river narrowed sharply from a width of about to . The total height of the falls was approximately , while the largest individual cataract was high. The roar of the plunging water could be heard from away. Submergence A tourist attrac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echus Chasma
Echus Chasma is a chasma in the Lunae Planum high plateau north of the Valles Marineris canyon system of Mars. It is in the Coprates quadrangle.ESA (2008-07-14). Echus Chasma. Retrieved on 2008-07-15 from http://www.esa.int/esaSC/SEM4CATHKHF_index_0.html. Clay has been found within it, meaning that water once sat there for a time. It may have been one of the many lakes that have been advanced for the Martian past. Research from 2010 suggests that Mars had lakes along parts of the equator, which is where Echus Chasma lies. Although earlier research had shown that Mars had a warm and wet early history that has long since dried up, these lakes existed in the Hesperian Epoch, a much later period. Using detailed images from NASA's Mars Reconnaissance Orbiter, the researchers speculate that there may have been increased volcanic activity, meteorite impacts or shifts in Mars' orbit during this period to warm Mars' atmosphere enough to melt the abundant ice present in the ground. Vol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dry Falls Dam
Dry Falls Dam is a rockfaced earthfill type , Bureau of Reclamation in the of . Located in near Coulee City, it was built as part of the [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Banks Lake
Banks Lake is a reservoir in central Washington in the United States. Part of the Columbia Basin Project, Banks Lake occupies the northern portion of the Grand Coulee, a formerly dry coulee near the Columbia River, formed by the Missoula Floods during the Pleistocene epoch. Grand Coulee Dam, built by the United States Bureau of Reclamation on the Columbia River created Franklin D. Roosevelt Lake, the reservoir on the river behind the dam. The surface of Lake Roosevelt is several hundred feet above the original Columbia River, making it easier to pump water up and out of the river's canyon into the adjacent Grand Coulee. Two low earth-fill dams, Dry Falls Dam and North Dam, keep the water in the Grand Coulee, thus creating the reservoir named Banks Lake. It is named after Frank A. Banks, the construction supervisor at Grand Coulee Dam. At the north end of Banks Lake the city of Grand Coulee and the town of Electric City are located. Steamboat Rock State Park is in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coulee City, Washington
Coulee City is a town in Grant County, Washington, Grant County, Washington (state), Washington. The population was 549 at the 2020 United States census, 2020 census. History Coulee City was commonly known as McEntee’s Crossing of the Grand Coulee in the 19th century. In 1881, Philip McEntee, after helping a group of surveyors trying to lay down a road, built the first log cabin around Coulee City. Other important pioneers soon followed in the following years. The town was named after nearby Grand Coulee. Coulee City was officially incorporated on May 10, 1907. Geography Coulee City sits on the southern shore of Banks Lake, a man-made reservoir that stretches for 27 miles to Grand Coulee Dam. At Coulee City, water from the reservoir enters a system of irrigation canals taking it to Billy Clapp Lake to the south and then beyond across the broader Columbia Basin Project. Dry Falls, site of a catastrophic and large prehistoric waterfall, is located about two miles southwest of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Washington State Route 17
State Route 17 (SR 17) is a state highway serving the Columbia Plateau in the central region of the U.S. state of Washington. The highway travels through mostly rural areas of Franklin. Adams, Grant, Douglas, and Okanogan counties and is designated as part of the National Highway System between Mesa and Moses Lake and as the Coulee Corridor Scenic Byway between Othello and Coulee City for passing through the Grand Coulee. SR 17 begins in Mesa at an interchange with U.S. Route 395 (US 395) and travels north and intersects SR 26 near Othello before entering Moses Lake, where the highway intersects Interstate 90 (I-90) and travels as a partial expressway. SR 17 continues north, intersecting SR 28 in Soap Lake, through the Grand Coulee to a short concurrency with US 2 west of Coulee City. The highway turns northwest and crosses the Columbia River on the Columbia River Bridge at Bridgeport before ending at US 97 in Br ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sun Lakes-Dry Falls State Park
Sun Lakes-Dry Falls State Park (formerly, Sun Lakes State Park) is a public recreation area located at the foot of Dry Falls, three miles (4.8 km) west of Coulee City in Grant County, Washington. The state park covers along Route 17 at the head of the Lower Grand Coulee. Park history The state purchased land to create the state park from 1933 through 1972. Fifteen parcels were purchased from the Bureau of Land Management, the Department of Natural Resources, and private interests. The Civilian Conservation Corps built rock walls and a lookout at Dry Falls called Vista House in 1938. The CCC workers also constructed a residence and water pump house. The Camp Delany group retreat facility was added to the park in 1956, the buildings at Sun Lakes Park Resort were constructed in 1959, and the interpretive center overlooking Dry Falls was built in 1965. Features Dry Falls is a stark cliff measuring high and wide. It was the site of a waterfall formed during the Missoula ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plunge Pool
A plunge pool (or plunge basin or waterfall lake) is a deep depression in a stream bed at the base of a waterfall or Shut-in (river), shut-in. It is created by the erosion, erosional forces of cascading water on the rocks at the formation's base where the water impacts.Marshak, Stephen, 2009, ''Essentials of Geology,'' W. W. Norton & Company, 3rd ed. The term may refer to the water occupying the depression, or the depression itself. Formation Plunge pools are formed by the natural force of falling water, such as at a waterfall or cascade; they also result from man-made structures such as some spillway designs. Plunge pools are often very deep, generally related to the height of the fall, the volume of water, the resistance of the rock below the pool and other factors. The impacting and swirling water, sometimes carrying rocks within it, Abrasion (geology), abrades the riverbed into a basin, which often features rough and irregular sides. Plunge pools can remain long after t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
