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Courtois Hills
The Courtois Hills region is an area of the Ozark Mountains in southeast Missouri. It is one of several mountainous regions that surround the Ozarks's Salem (or Central) Plateau. Geography Although it does not contain the highest peak, the Courtois Hills has most rugged terrain and steepest average slopes of any region of the Missouri Ozarks. It, and the community Courtois, are named after Courtois Creek (pronounced "Cote-o-way" or "Curt-o-way"), one of many waterways flowing through a narrow and steep-sided valley separated by sharp ridges. The region was named after this Crawford County creek because it was one of the earliest settled valleys. The area contains significant outcropping of limestone, ridges of chert. It also contains several springs including Greer Spring, Round Spring and Alley Spring near Eminence and Big Spring near Van Buren. Other common landforms are caves, sinkholes, and solution caves such as the Sinks natural tunnel on Current River tributary Si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ozarks Highlands Of Missouri
The Ozarks, also known as the Ozark Mountains, Ozark Highlands or Ozark Plateau, is a physiographic region in the U.S. states of Missouri, Arkansas, Oklahoma and the extreme southeastern corner of Kansas. The Ozarks cover a significant portion of northern Arkansas and most of the southern half of Missouri, extending from Interstate 40 in central Arkansas to Interstate 70 in central Missouri. There are two mountain ranges in the Ozarks: the Boston Mountains of Arkansas and the St. Francois Mountains of Missouri. Buffalo Lookout, the highest point in the Ozarks, is located in the Boston Mountains. Geologically, the area is a broad dome with the exposed core in the ancient St. Francois Mountains. The Ozarks cover nearly , making it the most extensive highland region between the Appalachians and Rockies. Together with the Ouachita Mountains, the area is known as the U.S. Interior Highlands. The Salem Plateau, named after Salem, Missouri, makes up the largest geologic area of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Current River (Ozarks)
The Current River forms in the southeastern portion of the Ozarks of Missouri and becomes a 7th order stream as it flows southeasterly out of the Ozarks into northeastern Arkansas where it becomes a tributary of the Black River, which is a tributary of the White River, a tributary of the Mississippi River. The Current River is approximately long and drains about of land mostly in Missouri and a small portion of land in northeastern Arkansas. The headwaters of the Current River are nearly above sea level, while the mouth of the river lies around above sea level. The basin drains a rural area that is dominated by karst topography, underlain by dolomite and sandstone bedrock with a small area of igneous rock southeast of Eminence, Missouri. The annual daily mean discharge of the river near Doniphan, Missouri is per second. In 1964, over 134 mi (160 km) of the upper course of the river and its tributaries were federally protected as the Ozark National Scenic Riv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Regions Of Missouri
Missouri, a state near the geographical center of the United States, has Physiographic Regions of the United States, three distinct physiographic divisions: * a north-western upland plain or prairie region part of the Interior Plains' Central Lowland (Physiographic Regions of the United States, areas Osage Plain 12f and Dissected Till Plains 12e) known as the northern plains * a lowland in the extreme southeast Missouri Bootheel, bootheel region of Missouri, part of the Atlantic Plain known as the Mississippi Alluvial Plain (Physiographic Regions of the United States, 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, Missouri, St. Louis to Columbia, Missouri, Columbia. This also corresponds to the southernmost extent of glaciation during t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountain Ranges Of Missouri
A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limited summit area, and is usually higher than a hill, typically rising at least 300 metres (1,000 feet) above the surrounding land. A few mountains are isolated summits, but most occur in mountain ranges. Mountains are formed through tectonic forces, erosion, or volcanism, which act on time scales of up to tens of millions of years. Once mountain building ceases, mountains are slowly leveled through the action of weathering, through slumping and other forms of mass wasting, as well as through erosion by rivers and glaciers. High elevations on mountains produce colder climates than at sea level at similar latitude. These colder climates strongly affect the ecosystems of mountains: different elevations have different plants and animals. Because of the less hospitable terrain and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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] |
Black River (Arkansas–Missouri)
The Black River is a tributary of the White River, about long,AllRefer.com in southeastern and northeastern in the . Via the White River, it is part of the watershed. |
Castor River (Missouri)
The Castor River is divided into the Upper Castor River and the Lower Castor River by the Headwater Diversion Channel. The Upper Castor rises in the southern corner of Ste. Genevieve County of southeast Missouri about ten miles north-northeast of Fredericktown. The river flows south through eastern Madison County into the eastern edge of Wayne County to Bollinger County where it empties into the Headwater Diversion Channel, which flows into the Mississippi River just south of Cape Girardeau.''Missouri Atlas & Gazetteer,'' DeLorme, 1998, First edition, pp. 58 and 67 The Lower Castor River south of the Diversion Channel flows south where it joins the Little River. Castor is a name derived from French meaning "beaver". The stream was mentioned by Henry Schoolcraft Henry Rowe Schoolcraft (March 28, 1793 – December 10, 1864) was an American geographer, geologist, and ethnologist, noted for his early studies of Native American cultures, as well as for his 1832 expedition to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zinc
Zinc is a chemical element with the symbol Zn and atomic number 30. Zinc is a slightly brittle metal at room temperature and has a shiny-greyish appearance when oxidation is removed. It is the first element in group 12 (IIB) of the periodic table. In some respects, zinc is chemically similar to magnesium: both elements exhibit only one normal oxidation state (+2), and the Zn2+ and Mg2+ ions are of similar size.The elements are from different metal groups. See periodic table. Zinc is the 24th most abundant element in Earth's crust and has five stable isotopes. The most common zinc ore is sphalerite (zinc blende), a zinc sulfide mineral. The largest workable lodes are in Australia, Asia, and the United States. Zinc is refined by froth flotation of the ore, roasting, and final extraction using electricity ( electrowinning). Zinc is an essential trace element for humans, animals, plants and for microorganisms and is necessary for prenatal and postnatal development. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lead
Lead is a chemical element with the symbol Pb (from the Latin ) and atomic number 82. It is a heavy metal that is denser than most common materials. Lead is soft and malleable, and also has a relatively low melting point. When freshly cut, lead is a shiny gray with a hint of blue. It tarnishes to a dull gray color when exposed to air. Lead has the highest atomic number of any stable element and three of its isotopes are endpoints of major nuclear decay chains of heavier elements. Lead is toxic, even in small amounts, especially to children. Lead is a relatively unreactive post-transition metal. Its weak metallic character is illustrated by its amphoteric nature; lead and lead oxides react with acids and bases, and it tends to form covalent bonds. Compounds of lead are usually found in the +2 oxidation state rather than the +4 state common with lighter members of the carbon group. Exceptions are mostly limited to organolead compounds. Like the lighter members of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinus Echinata
''Pinus echinata'', the shortleaf pine, is a species of pine native to the southeastern United States. Description The tree is variable in form, sometimes straight, sometimes crooked, with an irregular crown. The tree reaches heights of with a trunk diameter of . The leaves are needle-like, in fascicles (bundles) of two and three mixed together, and from long. The cones are long, with thin scales with a transverse keel and a short prickle. They open at maturity but are persistent. Shortleaf pine seedlings develop a persistent J-shaped crook near the ground surface. Axillary and other buds form near the crook and initiate growth if the upper stem is killed by fire or is severed. The bark has resin pockets, which form small depressions, less than in diameter. This feature can be used to distinguish ''P. echinata'' from all other ''Pinus'' species within its native range. Taxonomy The Latin specific epithet of ''echinata'' refers to hedgehog, from ''echinus''. Di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Board Feet
The board foot or board-foot is a unit of measurement for the volume of lumber in the United States and Canada. It equals the volume of a length of a board, one foot wide and thick. Board foot can be abbreviated as FBM (for "foot, board measure"), BDFT, or BF. A thousand board feet can be abbreviated as MFBM, MBFT, or MBF. Similarly, a million board feet can be abbreviated as MMFBM, MMBFT, or MMBF. Until 1970s in Australia and New Zealand the terms super foot and superficial foot were used with the same meaning. One board foot equals: * 1 ft × 1 ft × 1 in * 12 in × 12 in × 1 in * 144 in3 * 1/12 ft3 * ≈ * ≈ * ≈ or steres * 1/1980 Petrograd Standard of board The board foot is used to measure rough lumber (before drying and planing with no adjustments) or planed/surfaced lumber. An example of planed lumber is softwood 2 × 4 lumber sold by large lumber retailers. The 2 × 4 is actually only , but the dimensions for the lumber when purchased wholesa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Missouri Lumber And Mining Company
The Missouri Lumber and Mining Company (MLM) was a large timber corporation with headquarters and primary operations in southeast Missouri. The company was formed by Pennsylvania lumbermen who were eager to exploit the untapped timber resources of the Missouri Ozarks to supply lumber, primarily used in construction, to meet the demand of U.S. westward expansion. Its primary operations were centered in Grandin, a company town it built starting . The lumber mill there grew to be the largest in the country at the turn of the century and Grandin's population peaked around 2,500 to 3,000. As the timber resources were exhausted, the company had to abandon Grandin around 1910. It continued timber harvesting in other parts of Missouri for another decade. While some of the buildings in Grandin were relocated, many of the remaining buildings were listed on the National Register of Historic Places in 1980 as part of the state's historic preservation plan which considered the MLM a signif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
