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Maple Spring Brook
Maple Spring Brook (also known as Maple Spring Branch or Maple Spring Run) is a tributary of Kitchen Creek in Luzerne County, Pennsylvania, in the United States. It is approximately long and flows through Fairmount Township. The watershed of the stream has an area of . There is a waterfall in the stream's upper reaches and hemlock trees occur in the vicinity. The surficial geology in the area consists mainly of Wisconsinan Till, Wisconsinan Bouldery Till, wetlands, and bedrock consisting of shale and sandstone. Course Maple Spring Brook begins on a mountain in Fairmount Township, not far from Red Rock Mountain. It flows southeast for a short distance and enters a deep valley before turning south. The stream then turns east-southeast for a short distance before reaching its confluence with Kitchen Creek. Maple Spring Brook joins Kitchen Creek upstream of its mouth. Geography and geology The elevation near the mouth of Maple Spring Brook is above sea level. The elevation ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Huntington Creek (Pennsylvania)
Huntington Creek is a tributary of Fishing Creek (North Branch Susquehanna River) in Luzerne and Columbia counties, Pennsylvania, in the United States. It is approximately long. Course Huntington Creek begins in Lake Township, Luzerne County, flows west-southwest for over a mile, then enters Ross Township. Here the creek turns south for approximately two miles as its valley widens. It presently turns west and crosses Pennsylvania Route 118, on the other side of which the creek turns southwest and receives its first named tributary, Mitchler Run. A short distance downstream, Huntington Creek receives its second tributary, Laurel Run. The creek then makes a sharp turn south, picking up the tributary Shingle Run, then makes a sharp turn west and receives the tributary Arnold Creek. As Huntington Creek continues west its valley deepens and broadens and it receives Lick Branch. The creek then enters Fairmount Township, passes by Jackson Hill, receives Phillips Creek and then tur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wetland
A wetland is a distinct ecosystem that is flooded or saturated by water, either permanently (for years or decades) or seasonally (for weeks or months). Flooding results in oxygen-free (anoxic) processes prevailing, especially in the soils. The primary factor that distinguishes wetlands from terrestrial land forms or Body of water, water bodies is the characteristic vegetation of aquatic plants, adapted to the unique anoxic hydric soils. Wetlands are considered among the most biologically diverse of all ecosystems, serving as home to a wide range of plant and animal species. Methods for assessing wetland functions, wetland ecological health, and general wetland condition have been developed for many regions of the world. These methods have contributed to wetland conservation partly by raising public awareness of the functions some wetlands provide. Wetlands occur naturally on every continent. The water in wetlands is either freshwater, brackish or seawater, saltwater. The main w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rivers Of Luzerne County, Pennsylvania
A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of water. Small rivers can be referred to using names such as creek, brook, rivulet, and rill. There are no official definitions for the generic term river as applied to geographic features, although in some countries or communities a stream is defined by its size. Many names for small rivers are specific to geographic location; examples are "run" in some parts of the United States, "burn" in Scotland and northeast England, and "beck" in northern England. Sometimes a river is defined as being larger than a creek, but not always: the language is vague. Rivers are part of the water cycle. Water generally collects in a river from precipitation through a drainage basin from surface runoff and other sources such as groundwater recharge, springs, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Rivers Of Pennsylvania
This is a list of streams and rivers in the U.S. state of Pennsylvania. By drainage basin This list is arranged by drainage basin, with respective tributaries indented under each larger stream's name. Delaware Bay Chesapeake Bay *''Elk River (MD)'' **Big Elk Creek **Little Elk Creek *''North East River (MD) **North East Creek *Gunpowder River Susquehanna River *Susquehanna River ** Deer Creek **Octoraro Creek *** West Branch Octoraro Creek **** Stewart Run *** East Branch Octoraro Creek **** Muddy Run ** Conowingo Creek ** Fishing Creek (Lancaster County) **Muddy Creek (Susquehanna River tributary) ***North Branch Muddy Creek *** South Branch Muddy Creek ** Tucquan Creek ** Otter Creek **Pequea Creek *** Big Beaver Creek ***Little Beaver Creek ** Conestoga River *** Little Conestoga Creek *** Mill Creek *** Lititz Run ***Cocalico Creek ****Hammer Creek **** Middle Creek **** Indian Run **** Little Cocalico Creek ***Muddy Creek (Conestoga River tributary) **** Little ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shingle Cabin Brook
Shingle Cabin Brook (also known as Shingle Cabin Branch) is a tributary of Kitchen Creek in Luzerne County, Pennsylvania, in the United States. It is approximately long and flows through Fairmount Township. The watershed of the stream has an area of . It is in Ricketts Glen State Park. The stream has one waterfall, which is known as Shingle Cabin Falls. The surficial geology in the area features Wisconsinan Till, Wisconsinan Bouldery Till, and bedrock consisting of sandstone and shale. Course Shingle Cabin Brook begins in a valley in Fairmount Township. It flows southwest for several hundred feet before turning west-northwest and then southwest. Its valley abruptly becomes much deeper. The stream turns west-southwest for a few tenths of a mile before turning west-northwest for a similar distance. It then turns southwest and reaches its confluence with Kitchen Creek. Shingle Cabin Brook joins Kitchen Creek upstream of its mouth. Geography and geology The elevation near the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boston Run
Boston Run is a tributary of Kitchen Creek in Luzerne County, Pennsylvania, in the United States. It is approximately long and flows through Fairmount Township. The watershed of the creek has an area of . Old-growth forests are in the vicinity and wild trout naturally reproduce in the stream. The surficial geology nearby features Wisconsinan Outwash, Wisconsinan Till, fill, and bedrock consisting of sandstone and shale. Course Boston Run begins on the southern base of a mountain in Fairmount Township. It flows southwest for a short distance before turning west for a few tenths of a mile. The stream then turns southwest, passing through a small pond and crossing Pennsylvania Route 118. It then turns west-southwest for several tenths of a mile before reaching its confluence with Kitchen Creek in Kitchen Creek Gorge. Boston Run joins Kitchen Creek upstream of its mouth. Geography and geology The elevation near the mouth of Boston Run is above sea level. The elevation of the st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ricketts Glen State Park
Ricketts Glen State Park is a Pennsylvania state park on 13,193 acres (5,280 ha) in Columbia, Luzerne, and Sullivan counties in Pennsylvania in the United States. Ricketts Glen is a National Natural Landmark known for its old-growth forest and 24 named waterfalls along Kitchen Creek, which flows down the Allegheny Front escarpment from the Allegheny Plateau to the Ridge-and-Valley Appalachians. The park is near the borough of Benton on Pennsylvania Route 118 and Pennsylvania Route 487, and is in five townships: Sugarloaf in Columbia County, Fairmount and Ross in Luzerne County, and Colley and Davidson in Sullivan County. Ricketts Glen's land was once home to Native Americans. From 1822 to 1827, a turnpike was built along the course of PA 487 in what is now the park, where two squatters harvested cherry trees to make bed frames from about 1830 to 1860. The park's waterfalls were one of the main attractions for a hotel from 1873 to 1903; the park is named for th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geographic Names Information System
The Geographic Names Information System (GNIS) is a database of name and locative information about more than two million physical and cultural features throughout the United States and its territories, Antarctica, and the associated states of the Marshall Islands, Federated States of Micronesia, and Palau. It is a type of gazetteer. It was developed by the United States Geological Survey (USGS) in cooperation with the United States Board on Geographic Names (BGN) to promote the standardization of feature names. Data were collected in two phases. Although a third phase was considered, which would have handled name changes where local usages differed from maps, it was never begun. The database is part of a system that includes topographic map names and bibliographic references. The names of books and historic maps that confirm the feature or place name are cited. Variant names, alternatives to official federal names for a feature, are also recorded. Each feature receives a per ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tsuga
''Tsuga'' (, from Japanese (), the name of ''Tsuga sieboldii'') is a genus of conifers in the subfamily Abietoideae of Pinaceae, the pine family. The common name hemlock is derived from a perceived similarity in the smell of its crushed foliage to that of the unrelated plant poison hemlock. Unlike the latter, ''Tsuga'' species are not poisonous. The genus comprises eight to ten species (depending on the authority), with four species occurring in North America and four to six in eastern Asia. Description They are medium-sized to large evergreen trees, ranging from tall, with a conical to irregular crown, the latter occurring especially in some of the Asian species. The leading shoots generally droop. The bark is scaly and commonly deeply furrowed, with the colour ranging from grey to brown. The branches stem horizontally from the trunk and are usually arranged in flattened sprays that bend downward towards their tips. Short spur shoots, which are present in many gymnosperms ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clinometer
An inclinometer or clinometer is an instrument used for measuring angles of slope, elevation, or depression of an object with respect to gravity's direction. It is also known as a ''tilt indicator'', ''tilt sensor'', ''tilt meter'', ''slope alert'', ''slope gauge'', ''gradient meter'', ''gradiometer'', ''level gauge'', ''level meter'', ''declinometer'', and ''pitch & roll indicator''. Clinometers measure both inclines and declines using three different units of measure: degrees, percentage points, and topos. The astrolabe is an example of an inclinometer that was used for celestial navigation and location of astronomical objects from ancient times to the Renaissance. A ''tilt sensor'' can measure the tilting in often two axes of a reference plane in two axes. In contrast, a full motion would use at least three axes and often additional sensors. One way to measure tilt angle with reference to the earth's ground plane, is to use an accelerometer. Typical applications can be f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laser
A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The word "laser" is an acronym for "light amplification by stimulated emission of radiation". The first laser was built in 1960 by Theodore H. Maiman at Hughes Research Laboratories, based on theoretical work by Charles Hard Townes and Arthur Leonard Schawlow. A laser differs from other sources of light in that it emits light which is ''coherent''. Spatial coherence allows a laser to be focused to a tight spot, enabling applications such as laser cutting and lithography. Spatial coherence also allows a laser beam to stay narrow over great distances (collimation), enabling applications such as laser pointers and lidar (light detection and ranging). Lasers can also have high temporal coherence, which allows them to emit light with a very narrow spectrum. Alternatively, temporal coherence can be used to produce ultrashort pulses of ligh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fraxinus Americana
''Fraxinus americana'', the white ash or American ash, is a species of '' ash tree'' native to eastern and central North America. The species is native to mesophytic hardwood forests from Nova Scotia west to Minnesota, south to northern Florida, and southwest to eastern Texas. Isolated populations have also been found in western Texas Texas (, ; Spanish language, Spanish: ''Texas'', ''Tejas'') is a state in the South Central United States, South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2 ..., Wyoming, and Colorado, and the species is reportedly naturalized in Hawaii. There are an estimated 8 billion ash trees in the United States – the majority being the white ash trees and the Fraxinus pennsylvanica, green ash trees. Characteristics The name white ash derives from the glaucous undersides of the leaves. It is similar in appearance to the green ash, making identification difficult. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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