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Johnson Springs
Johnson Springs is a spring east of the county seat Munfordville, Kentucky, U.S. It is reached via a winding trail starting in Thelma Stovall Park, also known as Green River Park & Arboretum, Munfordville. The spring is from the trail head (when starting at Johnson Springs). The springs are from the Byrd trailhead. (When facing the main highway in the Johnson Springs area, the springs are on the right.) The blow hole from Green River is a seep blue hole aquifer, which forms the source of a minor tributary of Green River. The banks have been washed to expose 350 million-year-old fossils from the Cambrian Period. The stream is part of a large karst topography that covers a geologic watershed around Mammoth Cave and its underground rivers. The same limestone seep created the extensive streams and cave system of Mammoth Caves. The vegetation includes mature sycamore trees, ferns, and moss. The constant temperate climate causes a humid mist to cover the area in summer. The roots ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spring (hydrosphere)
A spring is a point of exit at which groundwater from an aquifer flows out on top of Earth's crust (pedosphere) and becomes surface water. It is a component of the hydrosphere. Springs have long been important for humans as a source of fresh water, especially in arid regions which have relatively little annual rainfall. Springs are driven out onto the surface by various natural forces, such as gravity and hydrostatic pressure. Their yield varies widely from a volumetric flow rate of nearly zero to more than for the biggest springs. Formation Springs are formed when groundwater flows onto the surface. This typically happens when the groundwater table reaches above the surface level. Springs may also be formed as a result of karst topography, aquifers, or volcanic activity. Springs also have been observed on the ocean floor, spewing hot water directly into the ocean. Springs formed as a result of karst topography create karst springs, in which ground water travels throu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Munfordville, Kentucky
Munfordville is a home rule-class city in, and the county seat of, Hart County, Kentucky, United States. The population was 1,615 at the 2010 U.S. census. History The settlement was once known as "Big Buffalo Crossing". The current name came from Richard Jones Munford, who donated the land to establish the new county seat in 1816. Munfordville was incorporated in 1858. In 1862, the Civil War Battle of Munfordville took place in the town. Geography Munfordville is located in central Hart County at (37.276608, -85.897822), on the north side of the Green River. U.S. Route 31W is Munfordville's Main Street, while Interstate 65 passes just northwest of town, with access from Exit 65. I-65 leads north to Elizabethtown and southwest to Bowling Green. According to the United States Census Bureau, Munfordville has a total area of , of which , or 0.47%, are water. Demographics As of the census of 2000, there were 1,563 people, 698 households, and 418 families residing in the city. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kentucky
Kentucky ( , ), officially the Commonwealth of Kentucky, is a state in the Southeastern region of the United States and one of the states of the Upper South. It borders Illinois, Indiana, and Ohio to the north; West Virginia and Virginia to the east; Tennessee to the south; and Missouri to the west. Its northern border is defined by the Ohio River. Its capital is Frankfort, and its two largest cities are Louisville and Lexington. Its population was approximately 4.5 million in 2020. Kentucky was admitted into the Union as the 15th state on June 1, 1792, splitting from Virginia in the process. It is known as the "Bluegrass State", a nickname based on Kentucky bluegrass, a species of green grass found in many of its pastures, which has supported the thoroughbred horse industry in the center of the state. Historically, it was known for excellent farming conditions for this reason and the development of large tobacco plantations akin to those in Virginia and North Carolina i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thelma Stovall
Thelma Loyace Stovall (nee Hawkins; April 1, 1919 – February 4, 1994) was a pioneering American politician in the state of Kentucky. In 1949 she won election as state representative for Louisville, and served three consecutive terms. Over the next two decades, Stovall was elected Kentucky State Treasurer twice and Secretary of State of Kentucky three times. She capped her career as the 47th Lieutenant Governor of Kentucky (1975–1979) in the administration of her fellow Democrat, Governor Julian Carroll. She was the first woman to hold the office. Stovall was known for her assertive style. Several times in her career, when she found herself in the position of acting governor, she was unafraid of exercising that power – she issued gubernatorial pardons, called the Kentucky General Assembly into session to consider bills, and most famously issued an executive injunction against the Assembly's attempt to repeal Kentucky's ratification of the Equal Rights Amendment. Throughout he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blowhole
Blowhole may refer to: * Blowhole (anatomy), the hole at the top of a whale's or other cetacean's head *Blowhole (geology), a hole at the inland end of a sea cave **Kiama Blowhole in Kiama, Australia **The Blow Hole, a marine passage between Minstrel and East Cracroft Islands in the Central Coast of British Columbia, Canada * Blowhole Diversion Tunnel in Victoria, Australia *A type of casting defect A casting defect is an undesired irregularity in a metal casting process. Some defects can be tolerated while others can be repaired, otherwise they must be eliminated. They are broken down into five main categories: ''gas porosity'', ''shrinkage ... in metalworking See also * :Blowholes {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Green River (Kentucky)
The Green River is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map , accessed June 13, 2011 tributary of the Ohio River that rises in Lincoln County in south-central Kentucky. Tributaries of the Green River include the Barren River, the Nolin River, the Pond River and the Rough River. The river was named after Nathanael Greene, a general of the American Revolutionary War. History Following the Revolutionary War, many veterans staked claims along the Green River as payment for their military service. The river valley also attracted several vagrants, earning it the dubious nickname Rogue's Harbor. In 1842, the Green River was canalized, with a series of locks and dams being built to create a navigable channel as far inland as Bowling Green, Kentucky. Four locks and dams were constructed on the Green River, and one lock and dam was built on the Barren River, a tributary that passed through Bowling Green. During the American ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seep
A seep or flush is a moist or wet place where water, usually groundwater, reaches the earth's surface from an underground aquifer. Description Seeps are usually not of sufficient volume to be flowing beyond their immediate above-ground location. They are part of the limnology-geomorphology system. Like a higher volume spring, the water is only from underground sources. Seeps mostly occur in lower elevation areas because water runs downhill, but can happen higher up if the groundwater present is abundant enough. Along with natural seeps, man made seeps can occur by digging anywhere where there is wet ground. This method can be useful for survival purposes and helps the local wildlife by adding another water source to the area. Seeps often form a puddle, and are important for small wildlife, bird, and butterfly habitat and moisture needs. When they support mud-puddling many butterfly (''Lepidoptera'') species can obtain nutrients such as salts and amino acids, including some types ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aquifer
An aquifer is an underground layer of water-bearing, permeable rock, rock fractures, or unconsolidated materials (gravel, sand, or silt). Groundwater from aquifers can be extracted using a water well. Aquifers vary greatly in their characteristics. The study of water flow in aquifers and the characterization of aquifers is called hydrogeology. Related terms include aquitard, which is a bed of low permeability along an aquifer, and aquiclude (or ''aquifuge''), which is a solid, impermeable area underlying or overlying an aquifer, the pressure of which could create a confined aquifer. The classification of aquifers is as follows: Saturated versus unsaturated; aquifers versus aquitards; confined versus unconfined; isotropic versus anisotropic; porous, karst, or fractured; transboundary aquifer. Challenges for using groundwater include: overdrafting (extracting groundwater beyond the Dynamic equilibrium, equilibrium yield of the aquifer), groundwater-related subsidence of land, gro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossils
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood and DNA remnants. The totality of fossils is known as the ''fossil record''. Paleontology is the study of fossils: their age, method of formation, and evolutionary significance. Specimens are usually considered to be fossils if they are over 10,000 years old. The oldest fossils are around 3.48 billion years old to 4.1 billion years old. Early edition, published online before print. The observation in the 19th century that certain fossils were associated with certain rock strata led to the recognition of a geological timescale and the relative ages of different fossils. The development of radiometric dating techniques in the early 20th century allowed scientists to quantitatively measure the absolute ... [...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] |
Karst Topography
Karst is a topography formed from the dissolution of soluble rocks such as limestone, dolomite, and gypsum. It is characterized by underground drainage systems with sinkholes and caves. It has also been documented for more weathering-resistant rocks, such as quartzite, given the right conditions. Subterranean drainage may limit surface water, with few to no rivers or lakes. However, in regions where the dissolved bedrock is covered (perhaps by debris) or confined by one or more superimposed non-soluble rock strata, distinctive karst features may occur only at subsurface levels and can be totally missing above ground. The study of ''paleokarst'' (buried karst in the stratigraphic column) is important in petroleum geology because as much as 50% of the world's hydrocarbon reserves are hosted in carbonate rock, and much of this is found in porous karst systems. Etymology The English word ''karst'' was borrowed from German in the late 19th century, which entered German much earlier. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mammoth Cave National Park
Mammoth Cave National Park is an American national park in west-central Kentucky Kentucky ( , ), officially the Commonwealth of Kentucky, is a state in the Southeastern region of the United States and one of the states of the Upper South. It borders Illinois, Indiana, and Ohio to the north; West Virginia and Virginia to ..., encompassing portions of Mammoth Cave, the List of longest caves, longest cave system known in the world. Since the 1972 unification of Mammoth Cave with the even-longer system under Flint Ridge to the north, the official name of the system has been the Mammoth–Flint Ridge Cave System. The park was established as a national park on July 1, 1941, a World Heritage Site on October 27, 1981, an international Biosphere Reserve on September 26, 1990 and an International Dark Sky Park on October 28, 2021. The park's are located primarily in Edmonson County, Kentucky, Edmonson County, with small areas extending eastward into Hart County, Kentuc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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