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Glacial Lake Wisconsin
Glacial Lake Wisconsin was a prehistoric proglacial lake that existed from approximately 18,000 to 14,000 years ago, at the end of the last ice age, in the central part of present-day Wisconsin in the United States. Formation and demise Before the last glacier, a somewhat different Wisconsin River drained the north-central part of the state, running around the east end of the Baraboo Hills. Around 18,000 years ago, the Green Bay lobe of the Wisconsin glaciation, Laurentide ice sheet crept in from the east, butting up against the Baraboo Hills. With that outlet closed, the water backed up, filling the basin to the north and west, forming Glacial Lake Wisconsin. The water rose to as deep as 160 feet, with a surface area eight times the size of modern Lake Winnebago, a big cold lake stretching north to the site of Wisconsin Rapids, Wisconsin, Wisconsin Rapids. Eventually it found a new outlet, flowing west to the Mississippi River, Mississippi via the east fork of the Black River ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North America
North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Caribbean Sea, and to the west and south by the Pacific Ocean. Because it is on the North American Plate, North American Tectonic Plate, Greenland is included as a part of North America geographically. North America covers an area of about , about 16.5% of Earth's land area and about 4.8% of its total surface. North America is the third-largest continent by area, following Asia and Africa, and the list of continents and continental subregions by population, fourth by population after Asia, Africa, and Europe. In 2013, its population was estimated at nearly 579 million people in List of sovereign states and dependent territories in North America, 23 independent states, or about 7.5% of the world's population. In Americas (terminology)#Human ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central Plain (Wisconsin)
In the U.S. state of Wisconsin, the Central Plain is a geographical region consisting of about of land in a v-shaped belt across the center of the state. Beginning in the west, the Central Plain originates in Burnett and Polk Counties and runs southeast to Columbia County, where it turns northeast and reaches its end in Marinette County. The Central Plain region generally takes the form of a flat sandy plain with elevations between 700 and above sea level. There are variations on the flatland, however. Hills in Barron County possess the region’s highest altitudes, reaching more than above sea level. This section of the region is primarily a hardwood forest of maple, birch, and aspen, but there are several areas of agriculture scattered across the area. The plain is occasionally broken by rolling hills throughout its western half. Plains which were once the bed of Glacial Lake Wisconsin dominate the south central part of the region. Farms, fields, and cranberry bogs cover ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Former Lakes Of The United States
A former is an object, such as a template, gauge or cutting die, which is used to form something such as a boat's hull. Typically, a former gives shape to a structure that may have complex curvature. A former may become an integral part of the finished structure, as in an aircraft fuselage, or it may be removable, being using in the construction process and then discarded or re-used. Aircraft formers Formers are used in the construction of aircraft fuselage, of which a typical fuselage has a series from the nose to the empennage, typically perpendicular to the longitudinal axis of the aircraft. The primary purpose of formers is to establish the shape of the fuselage and reduce the column length of stringers to prevent instability. Formers are typically attached to longerons, which support the skin of the aircraft. The "former-and-longeron" technique (also called stations and stringers) was adopted from boat construction, and was typical of light aircraft built until the ad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Wisconsin
Lake Wisconsin is a reservoir on the Wisconsin River in southern Wisconsin in the United States. It is located in Columbia and Sauk counties, approximately southeast of Baraboo and NNW of Madison. Today it is home to the Wisconsin wine appellation of the Lake Wisconsin AVA. It was formed by the construction of the Prairie du Sac Dam, which was begun in 1911 and completed in 1914. It is part of the Wisconsin River system of reservoirs. The lake has a maximum depth of . It has an area of . Its construction effectively ended the Fox-Wisconsin Waterway connection to the Mississippi River, although commercial traffic had ended decades before completion of the dam. The lake provides flood A flood is an overflow of water ( or rarely other fluids) that submerges land that is usually dry. In the sense of "flowing water", the word may also be applied to the inflow of the tide. Floods are an area of study of the discipline hydrol ... control and is a popular destination for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Prehistoric Lakes
This a partial list of prehistoric lakes. Although the form of the names below differ, the lists are alphabetized by the identifying name of the lake (e.g., Algonquin for Glacial Lake Algonquin). YBP = Years Before Present. North America Endorheic basins * Estancia Valley, Central New Mexico, United States ** Lake Estancia, glacial paleolake that once hosted cutthroat trout * Plains of San Agustín, Central New Mexico, United States ** Lake San Agustín, present day site of the Very Large Array * Tularosa basin, Southern New Mexico, United States ** Lake Otero ** Lake Lucero; Once much larger, the present day lake is an alkali lake and the main source of gypsum for White Sands National Park, the largest gypsum dune field in the world. * Great Basin ** Mono Lake Lee Vining, California. Rapidly shrinking due to Los Angeles Department of Water and Power damming tributaries. Atlantic Drainage * St. Lawrence River drainage, i.e., the Great Lakes ** Champlain Sea; 11,800 – 8, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prairie Du Chien, Wisconsin
Prairie du Chien () is a city in and the county seat of Crawford County, Wisconsin, United States. The population was 5,506 at the 2020 census. Its ZIP Code is 53821. Often referred to as Wisconsin's second oldest city, Prairie du Chien was established as a European settlement by French voyageurs in the late seventeenth century. Its settlement date of June 17, 1673, makes it the fourth colonial settlement by European settlers in the Midwestern United States, following Green Bay, Wisconsin, Sault Ste. Marie, Michigan, and St. Ignace, Michigan. The city offers many sites showing its rich and important history in the region. The city is located near the confluence of the Wisconsin and Mississippi rivers, a strategic point along the Fox-Wisconsin Waterway that connects the Great Lakes with the Mississippi. This location offered early French missionaries and explorers their first access and entrance to the Mississippi River. Early French visitors to the site found it occupied by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dells Of The Wisconsin River
The Dells of the Wisconsin River, also called the Wisconsin Dells (from Old English dæle, modern English “dale”), meaning “valley”, is a 5-mile (8-km) gorge on the Wisconsin River in south-central Wisconsin, USA. It is noted for its scenic beauty, in particular for its unique Cambrian sandstone rock formations and tributary canyons. The formations are divided into the "Upper Dells" and the "Lower Dells" by the Kilbourn Dam. The cliffs, some over 100 feet (30 m) high, and side canyons are closed to the public to protect sensitive ecological features. The viewing of the rock formations by water is a popular tourist attraction in the area. The nearby city of Wisconsin Dells is the center of summer tourist activity, much of it in the form of the theme parks unrelated to the river features. The Dells of the Wisconsin River is owned by the Wisconsin Department of Natural Resources. It was established as a State Natural Area in 1994. Description and formatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sandstone
Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar (both silicates) because they are the most resistant minerals to weathering processes at the Earth's surface. Like uncemented sand, sandstone may be any color due to impurities within the minerals, but the most common colors are tan, brown, yellow, red, grey, pink, white, and black. Since sandstone beds often form highly visible cliffs and other topographic features, certain colors of sandstone have been strongly identified with certain regions. Rock formations that are primarily composed of sandstone usually allow the percolation of water and other fluids and are porous enough to store large quantities, making them valuable aquifers and petroleum reservoirs. Quartz-bearing sandstone can be changed into quartzite through metamorphism, usually related to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cambrian
The Cambrian Period ( ; sometimes symbolized C with bar, Ꞓ) was the first geological period of the Paleozoic Era, and of the Phanerozoic Eon. The Cambrian lasted 53.4 million years from the end of the preceding Ediacaran Period 538.8 million years ago (mya) to the beginning of the Ordovician Period mya. Its subdivisions, and its base, are somewhat in flux. The period was established as "Cambrian series" by Adam Sedgwick, who named it after Cambria, the Latin name for 'Cymru' (Wales), where Britain's Cambrian rocks are best exposed. Sedgwick identified the layer as part of his task, along with Roderick Murchison, to subdivide the large "Transition Series", although the two geologists disagreed for a while on the appropriate categorization. The Cambrian is unique in its unusually high proportion of sedimentary deposits, sites of exceptional preservation where "soft" parts of organisms are preserved as well as their more resistant shells. As a result, our understanding of the Ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flood
A flood is an overflow of water ( or rarely other fluids) that submerges land that is usually dry. In the sense of "flowing water", the word may also be applied to the inflow of the tide. Floods are an area of study of the discipline hydrology and are of significant concern in agriculture, civil engineering and public health. Human changes to the environment often increase the intensity and frequency of flooding, for example land use changes such as deforestation and removal of wetlands, changes in waterway course or flood controls such as with levees, and larger environmental issues such as climate change and sea level rise. In particular climate change's increased rainfall and extreme weather events increases the severity of other causes for flooding, resulting in more intense floods and increased flood risk. Flooding may occur as an overflow of water from water bodies, such as a river, lake, or ocean, in which the water overtops or breaks levees, resulting ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Interstate 94 In Wisconsin
Interstate 94 (I-94) runs east–west through the western, central, and southeastern portions of the US state of Wisconsin. A total of of I-94 lie in the state. Route description The route, cosigned with US Highway 12 (US 12), enters from Minnesota just east of the Twin Cities. The route passes north of Menomonie and south of Eau Claire before turning southeast and heading toward Tomah where it joins I-90. The two Interstates run concurrently for the next to Madison. I-94 enters the state as a six-lane facility which reduces to four-lane at exit 4 (US 12). I-94 passes by the popular tourist destination of Wisconsin Dells. The route converges with I-39 southeast of Tomah (near Portage). This concurrency () is the longest three-route concurrency of the Interstate Highway System and only one of two in existence. The interchanges mark a return to a six-lane configuration. I-94 turns eastward toward Milwaukee at what is commonly known as the " ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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