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Antietam Creek
Antietam Creek () is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map, accessed August 15, 2011 tributary of the Potomac River located in south central Pennsylvania and western Maryland in the United States, a region known as the Hagerstown Valley. The creek became famous as a focal point of the Battle of Antietam during the American Civil War. Geography The creek is formed in Franklin County, Pennsylvania, at the confluence of the West and East Branches of Antietam Creek, about south of Waynesboro, Pennsylvania. Welty's Mill Bridge crosses the East Branch of Little Antietam at Washington Township in Franklin County, Pennsylvania. The stream runs for about upon its entering Washington County, Maryland. The course proceeds southward in a meandering pattern, and the creek empties into the Potomac south of SharpsburgUnited States Geological Survey. Reston, VA"Antietam Creek."''Geographic Names Information System (GNIS).'' Ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Burnside's Bridge
Burnside's Bridge is a landmark on the Civil War Antietam National Battlefield near Sharpsburg, northwestern Maryland. History Construction Seeking to improve connections between roads in Washington County, fourteen bridges were commissioned to be constructed. It is one of five bridges designed by master bridge builder John Weaver, its construction was completed in 1836. It was constructed by local Dunker farmers. The three-arched, -wide, -long bridge provided a passageway over Antietam Creek for farmers to take their produce and livestock to market in Sharpsburg. The bridge's three arches are constructed of locally sourced coursed limestone, masonry walls contain the roadbed and has wooden parapets. The original cost of construction was $3200 (now between $73,000 and $84,000.) The bridge has two other names, one is "Rohrbach's Bridge", after a local farmer Henry Rohrbach who lived nearby. The second name, "Lower Bridge" is in reference to the Upper Bridge and Middle Bridge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drainage Basin
A drainage basin is an area of land where 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 a drainage divide. In a closed drainage basin, or endorheic basin, the water converges to a single point inside the basin, known as a sink, which may be a permanent lake, a dry lake, or a point where surface water is lost underground. Drainage basins are similar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Union Army
During the American Civil War, the Union Army, also known as the Federal Army and the Northern Army, referring to the United States Army, was the land force that fought to preserve the Union (American Civil War), Union of the collective U.S. state, states. It proved essential to the preservation of the United States as a working, viable republic. The Union Army was made up of the permanent Regular Army (United States), regular army of the United States, but further fortified, augmented, and strengthened by the many temporary units of dedicated United States Volunteers, volunteers, as well as including those who were drafted in to service as Conscription in the United States, conscripts. To this end, the Union Army fought and ultimately triumphed over the efforts of the Confederate States Army in the American Civil War. Over the course of the war, 2,128,948 men enlisted in the Union Army, including 178,895 United States Colored Troops, colored troops; 25% of the white men who s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antietam National Battlefield
Antietam National Battlefield is a National Park Service-protected area along Antietam Creek in Sharpsburg, Washington County, northwestern Maryland. It commemorates the American Civil War Battle of Antietam that occurred on September 17, 1862. The area, situated on fields among the Appalachian foothills near the Potomac River, features the battlefield site and visitor center, a national military cemetery, stone arch Burnside's Bridge, and a field hospital museum. Features In the Battle of Antietam, General Robert E. Lee's first invasion of the North ended on this battlefield in 1862. Established as Antietam National Battlefield Site August 30, 1890, the park was transferred from the War Department on August 10, 1933, and redesignated November 10, 1978. Along with all historic areas administered by the National Park Service, the battlefield was listed on the National Register of Historic Places on October 15, 1966. Additional documentation on the site was recorded by the Nat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arch Bridge
An arch bridge is a bridge with abutments at each end shaped as a curved arch. Arch bridges work by transferring the weight of the bridge and its loads partially into a horizontal thrust restrained by the abutments at either side. A viaduct (a long bridge) may be made from a series of arches, although other more economical structures are typically used today. History Possibly the oldest existing arch bridge is the Mycenaean Arkadiko Bridge in Greece from about 1300 BC. The stone corbel arch bridge is still used by the local populace. The well-preserved Hellenistic Eleutherna Bridge has a triangular corbel arch. The 4th century BC Rhodes Footbridge rests on an early voussoir arch. Although true arches were already known by the Etruscans and ancient Greeks, the Romans were – as with the vault and the dome – the first to fully realize the potential of arches for bridge construction. A list of Roman bridges compiled by the engineer Colin O'Connor featur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Algonquian Languages
The Algonquian languages ( or ; also Algonkian) are a subfamily of Indigenous languages of the Americas, indigenous American languages that include most languages in the Algic languages, Algic language family. The name of the Algonquian language family is distinguished from the orthographically similar Algonquin language, Algonquin dialect of the Indigenous Ojibwe language (Chippewa), which is a senior member of the Algonquian language family. The term ''Algonquin'' has been suggested to derive from the Maliseet word (), "they are our relatives/allies". A number of Algonquian languages are considered extinct languages by the modern linguistic definition. Algonquian peoples, Speakers of Algonquian languages stretch from the east coast of North America to the Rocky Mountains. The proto-language from which all of the languages of the family descend, Proto-Algonquian language, Proto-Algonquian, was spoken around 2,500 to 3,000 years ago. There is no scholarly consensus about wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Geological Survey
The United States Geological Survey (USGS), formerly simply known as the Geological Survey, is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, and the natural hazards that threaten it. The organization's work spans the disciplines of biology, geography, geology, and hydrology. The USGS is a fact-finding research organization with no regulatory responsibility. The agency was founded on March 3, 1879. The USGS is a bureau of the United States Department of the Interior; it is that department's sole scientific agency. The USGS employs approximately 8,670 people and is headquartered in Reston, Virginia. The USGS also has major offices near Lakewood, Colorado, at the Denver Federal Center, and Menlo Park, California. The current motto of the USGS, in use since August 1997, is "science for a changing world". The agency's previous slogan, adopted on the occasion of its hundredt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leitersburg, Maryland
Leitersburg is a census-designated place (CDP) in Washington County, Maryland, United States. The population was 523 at the 2000 census. History Bell-Varner House, Huckleberry Hall, and Leitersburg Historic District are listed on the National Register of Historic Places. Geography Leitersburg is located at (39.694309, −77.621063). According to the United States Census Bureau, the CDP has a total area of , all land. Demographics At the 2000 census there were 523 people, 218 households, and 163 families living in the CDP. The population density was . There were 226 housing units at an average density of . The racial makeup of the CDP was 97.13% White, 0.96% African American, 0.19% Asian, 1.34% from other races, and 0.38% from two or more races. Hispanic or Latino of any race were 1.72%. Of the 218 households 27.5% had children under the age of 18 living with them, 63.8% were married couples living together, 5.0% had a female householder with no husband present, and 24 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keedysville, Maryland
Keedysville is a town in Washington County, Maryland, Washington County, Maryland, United States. The population was 1,152 at the 2010 United States Census, 2010 census. History The first documented house in Keedysville was built in 1738. The description for George Gordon's "Gordon's Purchase" land tract notes "...one log house, 12 x 15 feet..." The initial warrant for the tract had been issued to Owen McDonald in Jan. 1738, the year before Gordon acquired it. Gordon's Purchase was the first tract taken up by a Euromerican within what would eventually become Keedysville. The main road at that time was the Conococheague Road, which branched from the Great Wagon Road just east of Keedysville and led to the farthest reaches of the provence, passing through what would eventually be Keedysville. The house and its exact location are unknown but the starting point for Gordon's Purchase was on today's Bell Lane. As more settlers moved into the region a grist mill was built on Little Antie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smithsburg, Maryland
Smithsburg is a town in Washington County, Maryland, United States. The population was 2,975 at the 2010 census. Smithsburg is close to the former Fort Ritchie army base and just west of the presidential retreat Camp David. History Smithsburg, MD was founded in 1812 by Christopher "Stuffle" Smith. He purchased a plot of land formerly known as "part of Shadrack's Lot." The community's development was directly influenced by factors such as migration paths, the arrival of the railroad, and advances in agricultural technology. By 1923, much of the existing village had been erected. Smithsburg was incorporated in 1846. Smithsburg acted as a hospital town during the American Civil War in 1862, treating wounded soldiers from nearby battles at South Mountain and Antietam. On July 5, 1863, Confederate General James Stuart and Union General Kilpatrick exchanged artillery fire over Smithsburg. A cannon ball from this exchange can be found lodged in the wall of a building on Water Street. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Aetna, Maryland
Mount Aetna is a census-designated place (CDP) in Washington County, Maryland, United States. The population was 838 at the 2000 census. Geography Mount Aetna is located at (39.602673, −77.613496). According to the United States Census Bureau, the CDP has a total area of , all land. The community is situated at the western base of South Mountain at elevations between 500 and 700 feet; the landscape here is principally underlain by the Tomstown Dolomite, and the neighboring area is home to at least four known solutional caves, one of which—Mount Aetna Cave—was open briefly for commercial tours in the 1930s. This region is drained by Mount Aetna Creek, which has at least three headwaters in the neighboring mountain, and is a tributary of Beaver Creek. Demographics As of the census of 2000, there were 838 people, 286 households, and 233 families residing in the CDP. The population density was . There were 292 housing units at an average density of . The racial makeup ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
