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Geography Of Missouri
Missouri, a state near the geographical center of the United States, has three distinct physiographic divisions: * a north-western upland plain or prairie region part of the Interior Plains' Central Lowland ( areas Osage Plain 12f and Dissected Till Plains 12e) known as the northern plains * a lowland in the extreme southeast bootheel region of Missouri, part of the Atlantic Plain known as the Mississippi Alluvial Plain ( areas 3e) or the Mississippi embayment * the Missouri portion of the Ozark Plateau (areas 14a and 14b) which lies between the Mississippi Alluvial Plain and the Central lowland. The boundary between the northern plains and the Ozark region follows the Missouri River from its mouth at St. Louis to Columbia. This also corresponds to the southernmost extent of glaciation during the Pre-Illinoian Stage which destroyed the remnant plateau to the north but left the ancient landforms to the south unaltered. The Ozark boundary runs southwestward from there towards ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Missouri Physiography Provinces 1
Missouri (''see pronunciation'') is a state in the Midwestern region of the United States. Ranking 21st in land area, it borders Iowa to the north, Illinois, Kentucky and Tennessee to the east, Arkansas to the south and Oklahoma, Kansas, and Nebraska to the west. In the south are the Ozarks, a forested highland, providing timber, minerals, and recreation. At 1.5 billion years old, the St. Francois Mountains are among the oldest in the world. The Missouri River, after which the state is named, flows through the center and into the Mississippi River, which makes up the eastern border. With over six million residents, it is the 19th-most populous state of the country. The largest urban areas are St. Louis, Kansas City, Springfield, and Columbia. The capital is Jefferson City. Humans have inhabited present-day Missouri for at least 12,000 years. The Mississippian culture, which emerged in the ninth century, built cities with pyramidal and other ceremonial mounds before decli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tennessee
Tennessee (, ), officially the State of Tennessee, is a landlocked U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders Kentucky to the north, Virginia to the northeast, North Carolina to the east, Georgia (U.S. state), Georgia, Alabama, and Mississippi to the south, Arkansas to the southwest, and Missouri to the northwest. Tennessee is the List of U.S. states and territories by area, 36th-largest by area and the List of U.S. states and territories by population, 15th-most populous of the 50 states. According to the United States Census Bureau, the state's estimated population as of 2024 is 7.22 million. Tennessee is geographically, culturally, and legally divided into three Grand Divisions of Tennessee, Grand Divisions of East Tennessee, East, Middle Tennessee, Middle, and West Tennessee. Nashville, Tennessee, Nashville is the state's capital and largest city, and anchors its largest metropolitan area. Tennessee has dive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barry County, Missouri
Barry County is a county located in the southwest portion of the U.S. state of Missouri. As of the 2020 Census, the population was 34,534. Its county seat is Cassville. The county was organized in 1835 and named after William Taylor Barry, a U.S. Postmaster General from Kentucky. The town of Barry, also named after the postmaster-general, was located just north of Kansas City, not in Barry County. Geography According to the U.S. Census Bureau, the county has a total area of , of which is land and (1.6%) is water. Roaring River State Park is located in the southern part of the county, amid the Mark Twain National Forest. Adjacent counties * Lawrence County (north) * Stone County (east) *Carroll County, Arkansas (southeast) *Benton County, Arkansas (south) * McDonald County (southwest) * Newton County (northwest) Major highways * U.S. Route 60 * Route 37 * Route 39 * Route 76 * Route 86 * Route 97 * Route 248 National protected area *Mark Twain National For ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White River (Arkansas)
White River may refer to: Bodies of water Africa * Bakoy River, in West Africa, called the White River over a portion of its length Canada * White River (British Columbia) * White River (Vancouver Island), a river in the Discovery Passage–Johnstone Strait watersheds of British Columbia ** White River Provincial Park * White River (Nass River), a river in the Marcus Passage watershed of British Columbia * White River (Quebec) * White River (Yukon) * White River (Ontario) China * White River (China), an old name for the Hai River Dominica * White River (Dominica) Estonia * Valgejõgi, or "white river", in northern Estonia Iran * Sefīd-Rūd, or "the white river", in Gilan province Jamaica * White River (Jamaica), a river New Zealand * White River, New Zealand, a river in the South Island Montserrat * White River, Montserrat, a former river in Montserrat United Kingdom * St Austell River, a river in Cornwall also known as the White River Unit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Headward Erosion
Headward erosion is erosion at the origin of a stream channel, which causes the origin to move back away from the direction of the stream flow, lengthening the stream channel.Essentials of Geology, 3rd Ed, Stephen Marshak It can also refer to the widening of a canyon by erosion along its very top edge, when sheets of water first enter the canyon from a more roughly planar surface above it, such as at Canyonlands National Park in Utah. When sheets of water on a roughly planar surface first enter a depression in it, this erodes the top edge of the depression. The stream is forced to grow longer at the very top of the stream, which moves its origin back, or causes the canyon formed by the stream to grow wider as the process repeats. Widening of the canyon by erosion inside the canyon, below the canyon side top edge, or origin or the stream, such as erosion caused by the streamflow inside it, is not called headward erosion. Headward erosion is a fluvial process of erosion that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ordovician
The Ordovician ( ) is a geologic period and System (geology), system, the second of six periods of the Paleozoic Era (geology), Era, and the second of twelve periods of the Phanerozoic Eon (geology), Eon. The Ordovician spans 41.6 million years from the end of the Cambrian Period Megaannum, Ma (million years ago) to the start of the Silurian Period Ma. The Ordovician, named after the Celtic Britons, Welsh tribe of the Ordovices, was defined by Charles Lapworth in 1879 to resolve a dispute between followers of Adam Sedgwick and Roderick Murchison, who were placing the same Rock (geology), rock beds in North Wales in the Cambrian and Silurian systems, respectively. Lapworth recognized that the fossil fauna in the disputed Stratum, strata were different from those of either the Cambrian or the Silurian systems, and placed them in a system of their own. The Ordovician received international approval in 1960 (forty years after Lapworth's death), when it was adopted as an official per ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mississippian Age
The Mississippian ( ), also known as Lower Carboniferous or Early Carboniferous, is a subperiod in the geologic timescale or a subsystem of the geologic record. It is the earlier of two subperiods of the Carboniferous period lasting from roughly 358.9 to 323.2 million years ago. As with most other geochronologic units, the rock beds that define the Mississippian are well identified, but the exact start and end dates are uncertain by a few million years. The Mississippian is so named because rocks with this age are exposed in the Mississippi Valley. The Mississippian was a period of marine transgression in the Northern Hemisphere: the sea level was so high that only the Fennoscandian Shield and the Laurentian Shield were dry land. The cratons were surrounded by extensive delta systems and lagoons, and carbonate sedimentation on the surrounding continental platforms, covered by shallow seas. In North America, where the interval consists primarily of marine limestones, it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Escarpment
An escarpment is a steep slope or long cliff that forms as a result of faulting or erosion and separates two relatively level areas having different elevations. Due to the similarity, the term '' scarp'' may mistakenly be incorrectly used interchangeably with ''escarpment.'' ''Escarpment'' referring to the margin between two landforms, and ''scarp'' referring to a cliff or a steep slope. In this usage an escarpment is a ridge which has a gentle slope on one side and a steep scarp on the other side. More loosely, the term ''scarp'' also describes a zone between a coastal lowland and a continental plateau which shows a marked, abrupt change in elevation caused by coastal erosion at the base of the plateau. Formation and description Scarps are generally formed by one of two processes: either by differential erosion of sedimentary rocks, or by movement of the Earth's crust at a geologic fault. The first process is the more common type: the escarpment is a transition from one seri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shawnee Hills
The Shawnee Hills are a region within the larger Interior Low Plateaus physiographic province located in southern Illinois, southern Indiana, and western Kentucky. In Illinois it rests mainly in an east–west arc roughly following the outline of the southern end of the Illinois Basin. Whereas Mississippian and Pennsylvanian Age rock layers are deep beneath the soil surface in central Illinois, these strata pierce the surface in southern Illinois. The Shawnee Hills are surface expressions of the more weather-resistant limestone and sandstone layers. This formation is due in part to the last glaciation of the Ice Age (which tended to grind down hills and bury them under soil) not reaching this far south. Shawnee is the name used for a native American people, who historically resided in the Ohio Valley. The Shawnee Hills are often called the "Illinois Ozarks", especially in promotional literature for tourism. But they are technically not a part of The Ozarks, a geologically si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meramec River
The Meramec River (), sometimes spelled Maramec River (the original US mapping spelled it Maramec but later changed it to Meramec), is one of the longest free-flowing waterways in the U.S. state of Missouri, draining Blanc, Caldwell, and Hawk. "Location" while wandering Blanc, Caldwell, and Hawk. "Executive Summary" from headwaters southeast of Salem to where it empties into the Mississippi River near St. Louis at Arnold and Oakville. The Meramec watershed covers six Missouri Ozark Highland counties— Dent, Phelps, Crawford, Franklin, Jefferson, and St. Louis—and portions of eight others— Maries, Gasconade, Iron, Washington, Reynolds, St. Francois, Ste. Genevieve, and Texas. Between its source and its mouth, it falls . Year-round navigability begins above Maramec Spring, just south of St. James. The Meramec's size increases at the confluence of the Dry Fork, and its navigability continues until the river enters the Mississippi at Arnold, Missouri. Histo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
McDonald County, Missouri
McDonald County is a county located in the southwestern corner of the U.S. state of Missouri. As of the 2020 census, the population was 23,303. and was estimated to be 24,054 in 2024, Its county seat is Pineville. History The county was organized in 1849 and named for Sergeant Alexander McDonald, a soldier in the American Revolutionary War. The county has three sites on the National Register of Historic Places, including the Old McDonald County Courthouse and the Powell Bridge. Geography According to the United States Census Bureau, the county has a total area of , of which is land and (0.04%) is water. It is the 71st largest county in Missouri by total area. Adjacent counties * Newton County (north) * Barry County (east) * Benton County, Arkansas (south) * Delaware County, Oklahoma (west) * Ottawa County, Oklahoma (northwest) Major highways * Interstate 49 * U.S. Route 71 * Route 43 * Route 59 * Route 76 * Route 90 Demographics As of the fourth quarter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
