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Anacostia River
The Anacostia River is a river in the Mid-Atlantic states, Mid Atlantic region of the United States. It flows from Prince George's County, Maryland, Prince George's County in Maryland into Washington, D.C., where it joins with the Washington Channel and ultimately empties into the Potomac River at Buzzard Point. It is about 8.7 miles (14.0 km) long.U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map , Retrieved August 15, 2011 The name "Anacostia" derives from the area's early history as Nacotchtank, a settlement of Necostan or Anacostan Native Americans in the United States, Native Americans on the banks of the Anacostia River. Heavy water pollution, pollution in the Anacostia and weak investment and land development, development along its banks made it "D.C.'s forgotten river". More recently, however, private organizations; local businesses; and the D.C., Government of Maryland, Maryland, and Federal government of the United ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States National Arboretum
The United States National Arboretum is an arboretum in northeast Washington, D.C., operated by the United States Department of Agriculture's Agricultural Research Service. It was established in 1927 by an act of Congress after a campaign by USDA Chief Botanist Frederick Vernon Coville. It is in size and is located northeast of the United States Capitol, Capitol building, with entrances on New York Avenue (Washington, D.C.), New York Avenue, NE and R Street, NE. The campus's gardens, collections, and features are connected by roadways that are long in total. In addition to the main campus in Washington, D.C., there are research locations at the Henry A. Wallace Beltsville Agricultural Research Center in Beltsville, Maryland and in McMinnville, Tennessee, McMinville, Tennessee. The Arboretum functions as a major center of botany, botanical research conducted by the USDA, including applied research on trees, shrubs, turf, and the development of new ornamental plants. In addition ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Land Development
Land development is the alteration of landscape in any number of ways, such as: * Changing landforms from a natural or semi-natural state for a purpose such as agriculture or House, housing * subdivision (land), Subdividing real estate into Lot (real estate), lots, typically for the purpose of building homes * Real estate development or changing its purpose, for example by converting an unused factory complex into a Condominium (living space), condominium History Land development has a history dating to Neolithic times around 8,000 BC. From the dawn of civilization, the process of land development has elaborated the progress of improvements on a piece of land based on codes and regulations, particularly housing complexes. Economic aspects In an economic context, land development is also sometimes advertised as land improvement or land amelioration. It refers to investment making land more usable by humans. For accounting purposes, it refers to any variety of projects that increas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Montgomery County, Maryland
Montgomery County is the most populous County (United States), county in the U.S. state of Maryland. As of the 2020 United States census, the county's population was 1,062,061, increasing by 9.3% from 2010. The county seat is Rockville, Maryland, Rockville, and Germantown, Maryland, Germantown is the most populous place in the county. The county is adjoined to Washington, D.C., the nation's capital, and is part of the Washington metropolitan area and the Washington–Baltimore combined statistical area. Most of the county's residents live in Silver Spring, Maryland, Silver Spring, Bethesda, Maryland, Bethesda, Germantown, Maryland, Germantown, and the Municipal corporation, incorporated cities of Rockville, Maryland, Rockville and Gaithersburg, Maryland, Gaithersburg. The average household income in Montgomery County is the List of highest-income counties in the United States, 20th-highest among U.S. counties as of 2020. The county has the highest percentage (29.2%) of resident ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drainage Basin
A drainage basin is an area of land in which all flowing surface water converges to a single point, such as a river mouth, or flows into another body of water, such as a lake or ocean. A basin is separated from adjacent basins by a perimeter, the drainage divide, made up of a succession of elevated features, such as ridges and hills. A basin may consist of smaller basins that merge at river confluences, forming a hierarchical pattern. Other terms for a drainage basin are catchment area, catchment basin, drainage area, river basin, water basin, and impluvium. In North America, they are commonly called a watershed, though in other English-speaking places, " watershed" is used only in its original sense, that of the drainage divide line. A drainage basin's boundaries are determined by watershed delineation, a common task in environmental engineering and science. In a closed drainage basin, or endorheic basin, rather than flowing to the ocean, water converges toward the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Watts Branch (Anacostia River)
Watts Branch is a tributary stream of the Anacostia River in Prince George's County, Maryland, and Washington, D.C. Course The headwaters of the stream originate in the Capitol Heights area of Prince George's County, and the branch flows roughly northwest for to the Anacostia, which drains to the Potomac River and the Chesapeake Bay. The watershed area of Watts Branch is about in Prince George's County and in Washington. Water quality Watts Branch is in a highly urbanized area, and its water quality has been rated as poor by government agencies. The stream has been polluted by urban runoff (stormwater), dumped trash and leaking sewer pipes. Much of the stream is in concrete channels or culverts. A variety of stream cleanup and restoration projects have been initiated by D.C. government, the United States Environmental Protection Agency The Environmental Protection Agency (EPA) is an independent agency of the United States government tasked with environmental pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paint Branch
Paint Branch is a tributaryU.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map accessed August 15, 2011 stream of the Anacostia River that flows Southeastwards through Montgomery County and Prince George's County, Maryland. Specifically, its primary tributary is of the Northeast Branch, which flows to the Anacostia River, Potomac River and the Chesapeake Bay. The beginning elevation of the stream is 480 feet above sea level and it subsequently drops to 30 feet when its flows meet the Indian Creek in College Park, Maryland. The headwaters of Paint Branch are located near Spencerville (about north of Washington, D.C.) and the stream flows south for to its confluence with the Northeast Branch. The watershed area is and includes portions of the communities of Spencerville, Cloverly, Fairland, Colesville, White Oak ''Quercus'' subgenus ''Quercus'' is one of the two subgenera into which the genus ''Quercus'' was divided in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sligo Creek
Sligo Creek is a free-flowing tributary of the Northwest Branch of the Anacostia River in Maryland. (The Anacostia, in turn, feeds into the Potomac River and eventually empties into the Atlantic Ocean via Chesapeake Bay.) The creek is approximately long, with a drainage area of about . Geography The creek rises in the Kemp Mill section of Silver Spring in Montgomery County and joins with Northwest Branch near the city of Hyattsville in Prince George's County. The lower portion of the creek has been channelized. Elevations in the subwatershed range from above sea level to at the confluence with Northwest Branch; the average gradient for the course of the creek is 0.72%. Contributing streams that flow into the creek include Wheaton Branch, Comstock Branch, Takoma Park Branch, and Long Branch. Sligo Creek is one of the most heavily urbanized subwatersheds in the Anacostia watershed, with a population density of 7,081 people per mi2. 75% of the watershed is in Montgo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tributary
A tributary, or an ''affluent'', is a stream or river that flows into a larger stream (''main stem'' or ''"parent"''), river, or a lake. A tributary does not flow directly into a sea or ocean. Tributaries, and the main stem river into which they flow, drain the surrounding drainage basin of its surface water and groundwater, leading the water out into an ocean, another river, or into an endorheic basin. The Irtysh is a chief tributary of the Ob (river), Ob river and is also the longest tributary river in the world with a length of . The Madeira River is the largest tributary river by volume in the world with an average discharge of . A confluence, where two or more bodies of water meet, usually refers to the joining of tributaries. The opposite to a tributary is a distributary, a river or stream that branches off from and flows away from the main stream. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cottage City, Maryland
Cottage City, officially the Town of Cottage City, is a town in Prince George's County, Maryland, United States. Per the 2020 census, the population was 1,335. Cottage City is a small, quiet community lying between Eastern Avenue (the border with Washington), Brentwood, Colmar Manor, and the Anacostia River. Cottage City was developed, beginning in 1870, under the name of "The Highlands". The area was incorporated in 1924 as Cottage City. History Its history dates to pre-revolutionary America; old records indicate that the area was home to several of the Potomac River Indian tribes. With the coming of European settlers, the area became noted for its deep-water Anacostia River port, known then as Harrison's Landing. Contributing to the economy of Harrison's Landing was Moyer's Grist Mill located in Yarrow, the very first mill of its type between Baltimore and Alexandria, Virginia. Yarrow was renamed several times, but today we know Yarrow as Cottage City. Known as the Dar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Confluence
In geography, a confluence (also ''conflux'') occurs where two or more watercourses join to form a single channel (geography), channel. A confluence can occur in several configurations: at the point where a tributary joins a larger river (main stem); or where two streams meet to become the river source, source of a river of a new name (such as the confluence of the Monongahela River, Monongahela and Allegheny River, Allegheny rivers, forming the Ohio River); or where two separated channels of a river (forming a river island) rejoin downstream from their point of separation. Scientific study Confluences are studied in a variety of sciences. Hydrology studies the characteristic flow patterns of confluences and how they give rise to patterns of erosion, bars, and scour pools. The water flows and their consequences are often studied with mathematical models. Confluences are relevant to the distribution of living organisms (i.e., ecology) as well; "the general pattern [downstream o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Main Stem
In hydrology, a main stem or mainstem (also known as a trunk) is "the primary downstream segment of a river, as contrasted to its tributaries". The mainstem extends all the way from one specific headwater to the outlet of the river, although there are multiple ways to determine which headwater (or first-order tributary) is the source of the main stem. Water enters the main stem from the river's drainage basin, the land area through which the mainstem and its tributaries flow.. A drainage basin may also be referred to as a ''watershed'' or ''catchment''. Hydrological classification systems assign numbers to tributaries and mainstems within a drainage basin. In the Strahler number, a modification of a system devised by Robert E. Horton in 1945, channels with no tributaries are called "first-order" streams. When two first-order streams meet, they are said to form a second-order stream; when two second-order streams meet, they form a third-order stream, and so on. In the Horton ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drainage Basin
A drainage basin is an area of land in which all flowing surface water converges to a single point, such as a river mouth, or flows into another body of water, such as a lake or ocean. A basin is separated from adjacent basins by a perimeter, the drainage divide, made up of a succession of elevated features, such as ridges and hills. A basin may consist of smaller basins that merge at river confluences, forming a hierarchical pattern. Other terms for a drainage basin are catchment area, catchment basin, drainage area, river basin, water basin, and impluvium. In North America, they are commonly called a watershed, though in other English-speaking places, " watershed" is used only in its original sense, that of the drainage divide line. A drainage basin's boundaries are determined by watershed delineation, a common task in environmental engineering and science. In a closed drainage basin, or endorheic basin, rather than flowing to the ocean, water converges toward the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
