NoeFlandre/osm-polygon-wikidata-only huggingface dataset:
Phare de Mathias Point

Le phare de Mathias Point (en anglais : Mathias Point Light), était un phare offshore de type screw-pile lighthouse situé sur la rivière Potomac près de Port Tobacco River (en) dans le comté de Charles, dans le Maryland. Il a été remplacé par une balise moderne en 1963. Historique Les fonds pour un phare près de Quantico, en Virginie, ont été affectés en 1872. Une étude technique recommandait plutôt de construire les phares plus en aval et un crédit fut alloué en 1874 pour construire un phare sur les plaines de Port Tobacco, avec une balise de jour. Les travaux ont été achevés en 1876. Le phare de Matthias Point ne ressemblait à aucune autre structure sur pilotis sur la baie de Chesapeake, avec beaucoup de boiseries décoratives et une structure distincte à trois niveaux que certains ont décrite comme ressemblant à un gâteau de mariage. Il était prévu que ce phare remplace le phare de Upper Cedar Point. Mais le nombre de plaintes conduisit à la réactivation de ce dernier en 1882. Le phare de Mathias Point fut automatisé en 1951 et remplacé en 1963 par une balise montée sur l'ancienne fondation. Description Le phare est un mât métallique à claire-voie, avec une balise de 13,5 m de haut, montée sur l'ancienne fondation. Il émet, à une hauteur focale de 13,5 m, un éclat verttoutes les 6 secondes. Sa portée n'est pas connue. Identifiant : ARLHS : USA-483 ; USCG : 2-17815 ; Admiralty : J1898 . Voir aussi Références (en) Cet article est partiellement ou en totalité issu de l’article de Wikipédia en anglais intitulé « Mathias Point Light » (voir la liste des auteurs). Lien connexe Liste des phares du Maryland Liens externes (en) Maryland Lighthouses (en) Lighthouses of the United States : Maryland Eastern Shore (en) Lighthouses of the United States : Maryland Western Shore (en) Maryland - ARLHS World List of Lights (WLOL) (en) Maryland - Online list of lights (en) Light - Lighthouse Explorer Portail des phares Portail du monde maritime Portail du Maryland
Matildaville, Virginia

Matildaville is a ghost town located along the Patowmack Canal near present day Great Falls, Virginia, United States. It was named for the wife of Light Horse Harry Lee, on 40 acres of land owned at the time by Bryan Fairfax, 8th Lord Fairfax of Cameron, and served as headquarters for the Patowmack Company from 1785 until 1799. Now, all that remains of the town are a series of ruins on the grounds of Great Falls Park. History Although both the Maryland and Virginia legislatures issued charters for the Patowmack Company in 1785, and George Washington became its first president (as well as owner of 50 shares of stock), the Virginia General Assembly did not issue a charter for this town until 1790. Its first trustees were: George Gilpin, Albert Russell, Josiah Clapham, Richard Bland Lee, Leven Powell and Samuel Love. It began as a staging and headquarters area for construction of the canal. At its height the town included the residence of the Patowmack Canal Company superintendent, a market, grist mill, sawmill, foundry, inn, ice house, workers' barracks, boarding houses, and other homes. Boatman and passengers stopped to wait their turn through the locks. Although the canal which ultimately opened up the Ohio River Valley for development was a lifelong dream of George Washington, the President died two years before completion of this first section. In 1802, the Patowmack Company finished a series of five canals and locks (including the Patowmack Canal) which enabled flat-bottomed boats poled like gondolas to skirt the falls of the Potomac River, and in 1807 it collected $15,000 in tolls. However, its construction costs greatly exceeded estimates and it never became a financial success. In 1821 a joint committee appointed by the Virginia and Maryland legislatures recommended that its charter be revoked, though instead it merged into the newly organized Chesapeake and Ohio Canal Company in 1828. An attempt to reinvent the town as a textile manufacturing center, modeled after the town of Lowell, Massachusetts, was made in 1839 by the Great Falls Manufacturing Company. The Company purchased the Patowmack Canal land at Great Falls, along with several town lots. In 1839, the town was re-chartered as South Lowell. However, in 1853, Congress granted the U.S. government power to condemn land in order to construct an aqueduct. In 1858, the government filed a lawsuit to shut the mills, which shareholders and the State of Virginia contested for four decades, by which time the Civil War had ended and the manufacturing enterprise long closed. Tourists and local fisherman at Great Falls frequently dined and lodged at one of the town's taverns. Dickey's Tavern, constructed c. 1797, claimed to have hosted every U.S. President from George Washington to Theodore Roosevelt and was the last remaining building in Matildaville before a fire destroyed it in 1950. References
McKeldin Mall

McKeldin Mall is a nine-acre quad in the heart of the campus of the University of Maryland, College Park, United States. Named after Theodore McKeldin, the former Governor of Maryland, McKeldin Mall was considered to be the largest academic mall in the United States on its opening. It has been named one of the most picturesque college campus quads in the nation. Description McKeldin Mall is book-ended (east to west) by the Main Administration building and McKeldin Library (the main library on campus) and along the north and south borders by various academic buildings, which are the homes to many departments in the College of Behavioral and Social Sciences, College of Arts and Humanities, and the College of Agriculture and Natural Resources. A 16-foot-by-250-foot rectangular fountain features prominently on the eastern half of the mall, honoring the university's members of the Omicron Delta Kappa society. A sundial, honoring Dutch astronomer Uco van Wijk (who founded the university's astronomy program) sits in the center of the mall, at the edge of the ODK fountain. Looking across the mall from the front entrance of McKeldin Library towards the Administration Building sits Testudo, the mascot of the University of Maryland. The mall underwent a substantial renovation in 1990. Academic buildings Northern end (from east to west): Symons Hall Edward St. John Teaching and Learning Center H.J. Patterson Hall Jimenez Hall Southern end (from east to west): Marie Mount Hall Woods Hall Francis Scott Key Hall Tydings Hall Journalism Building The Peace Garden Sitting in between the Main Administration Building and the ODK Fountain on McKeldin Mall is the Peace Garden. The Garden was created to commemorate the victims of the September 11 terrorist attacks. Flowers had been placed along the ODK Fountain on September 12, 2001 as a memorial; the Garden marks the location where those flowers were later buried. A plaque on the site explains the history of the Garden and includes the phrase, "May Peace Prevail on Earth." Images References Notes External links McKeldin Mall webcam McKeldin Mall at eBird
McKeldin Square

McKeldin Square is an area of Downtown Baltimore, located near the Inner Harbor at the corners of Pratt and Light Streets. The central area is a polygon of brick. On the Pratt St. side there is a strip of grass; behind the brick there used to be a pool at the base of a multi-leveled concrete structure with walkways and fountains; however, this fountain structure was removed in 2016 as part of the Inner Harbor 2.0 plan and maintenance costs, as well as hygiene and sanitary concerns. The location of the square puts it right in the middle of Baltimore's 1861 riots, during which locals turned on a Union regiment that was passing through the city. McKeldin Square has been designated as Baltimore's zone for protests, where it is legal to exercise one's First Amendment rights and pass out pamphlets. Permits are required for groups with groups of 25 or more requiring a permit. On October 4, 2011, it became the location of the Occupy Baltimore protests until their December 13 eviction. References
McLean School of Maryland

McLean School (formerly the McLean School of Maryland) is a K-12 co-educational, college preparatory school with two campuses in Potomac, Maryland. The school serves students, including those with dyslexia, anxiety, ADHD, and organizational challenges. History Founded in 1954 by Lenore and Delbert Foster, McLean School is an independent, coeducational, college preparatory day school for bright students in kindergarten through grade 12. The school got its name after the McLean Gardens in Northwest Washington, D.C. as it was started on the ground floor of one of the original buildings. The school was forced to move to its current location when the demand for housing in the area grew. Athletics McLean students participate in the following varsity sports: basketball, cross country, baseball, lacrosse, soccer, softball, track and field, volleyball, and wrestling. Students compete in the Potomac Valley Athletic Conference. In 2020, David Gregory, former moderator of Meet the Press, and his wife, Beth Wilkinson, founding partner of the law firm Wilkinson Stekloff, donated $1.5 million to establish the Athletics, Coaching, and Mentoring Program. This initiative delivers research-based practices, as well as educational strategies, to coaching. References External links Official website
McMurray–Frizzell–Aldridge Farm

The McMurray–Frizzell–Aldridge Farm is a historic home and farm complex located at Westminster, Carroll County, Maryland, United States. It consists of a log house constructed about 1790 and later enlarged, and several 19th and early 20th century domestic and agricultural outbuildings, including a stone summer kitchen, a frame smokehouse, a frame bank barn, a frame wagon shed, a frame hog pen, and a stone spring house. The McMurray–Frizzell–Aldridge Farm was listed on the National Register of Historic Places in 2001. References External links McMurray–Frizzell–Aldridge Farm, Carroll County, including photo from 2000, at Maryland Historical Trust
MedStar Franklin Square Medical Center

MedStar Franklin Square Medical Center, a member of MedStar Health, is a hospital located in the Rosedale area of eastern Baltimore County, Maryland. It is the third largest hospital in Maryland; with more than 3,500 employees, it is one of the largest employers in Baltimore County. The building is found along Franklin Square Drive, next to the campus of Community College of Baltimore County - Essex, and is used for the clinical training of allied health programs at the college. History In 1898 Franklin Square opened with 20 beds, the first hospital to open in the community of West Baltimore. In 1969 the hospital moved to the eastern Baltimore County in a new 325-bed facility. The Emergency Department treats a daily average of 300 patients making it one of the busiest emergency rooms in the state of Maryland. In the fall of 2004, the hospital opened the Harry and Jeanette Weinberg Cancer Institute, which houses centers focusing on melanoma, gynecologic oncology and breast cancer. MedStar Franklin Square built a 356,000-square-foot (33,100 m2) patient tower. Construction began in the fall of 2007, and was completed in 2010. MedStar Franklin Square has been awarded the high-level designation of a Teaching Hospital Cancer Center by the American College of Surgeons, and was accredited as a Magnet hospital for nursing in 2008, with reaccreditation in 2013. It has been the recipient of the Delmarva Foundation’s highest honor, the Excellence Award for Quality for Hospitals, in 2009, 2011 and 2012. U.S. News & World Report ranked the hospital as third best in Maryland and the Baltimore metropolitan area; it was also ranked among the nation’s top 50 “Best Hospitals” in Gastroenterology and Digestive system (GI) surgery. This is the fourth consecutive year the hospital has been included in this ranking. References External links MedStar Franklin Square Medical Center MedStar Health
MedStar Good Samaritan Hospital

MedStar Good Samaritan Hospital is a hospital in Baltimore. It is located at the corner of Loch Raven Boulevard and East Belvedere Avenue. U.S. News & World Report has named the hospital in its Top 50 for orthopedics, diabetes care and geriatrics. MedStar Good Samaritan Hospital is a member of MedStar Health, a not-for-profit community-based network of nine hospitals and other providers serving Maryland and the Washington, D.C. region. History MedStar Good Samaritan Hospital, a not-for-profit hospital, was founded as a Catholic hospital in 1968 through a gift from local merchant and philanthropist Thomas J. O'Neill, a Catholic businessman. As the healthcare needs of the community changed, so has MedStar Good Samaritan. While active in the fields of rehabilitation, orthopaedics, renal dialysis and rheumatology, the hospital has expanded its range of health services. Within the past 15 years, MedStar Good Samaritan has added two professional buildings to house office space for more than 200 physicians. The hospital also has established full-service inpatient and outpatient physical and occupational therapy programs. In the past decade, MedStar Good Samaritan added a cardiac cath lab, intensive and critical care units, and an emergency department. In the past several years, the hospital has added a number of programs and services to care for entire families: pediatricians and gynecologists are now on campus, in addition to a growing roster of primary care doctors and specialists. The Emergency Building was renamed the O′Neill Building, in honor of the founder, and an orthopedic, medical/surgical unit was added. Joint replacement patients now participate in a patient care program called JointExperience in a therapeutic setting on O'Neill 3. The hospital also features a geriatric medicine program, as well as three facilities for seniors: Belvedere Green and Woodbourne Woods, independent living facilities, and the Good Samaritan Nursing Center. The hospital was at one time attached to the Women's Medical College of Baltimore. In 1994, the hospital joined the Helix Health Network. In 1999, Good Samaritan Hospital joined MedStar Health after being affiliated with Helix Health Network. It is the only Catholic hospital in the MedStar network. In January 2010, Good Samaritan named Jeffrey A. Matton its new president, replacing Larry Beck, who retired. In July 2023, MedStar Health named Thomas J. Senker the president of MedStar Good Samaritan as well as MedStar Union Memorial Hospital. References External links Official site
MedStar Union Memorial Hospital

MedStar Union Memorial Hospital is a non-profit, acute care teaching hospital located in the North Central section of Baltimore, Maryland. The hospital is a member of MedStar Health, a community-based network of Baltimore/Washington, D.C. area hospitals and other health care services. In 2014, the magazine U.S. News & World Report ranked the hospital 10th in Maryland, and 9th in the Baltimore metropolitan area. For cardiology, cardiac surgery, and orthopedic surgery, it is ranked among the top 50 hospitals in the U.S.. Jazz leader Chick Webb worked in the hospital as a youngster, and Mickey Mantle received treatment at the hospital. In 1939, the gangster Al Capone spent time at the hospital to cure his paresis caused by syphilis, after his release from Alcatraz, after which he donated two cherry trees to the hospital. One tree was later cut down to allow the construction of a new wing of the hospital. References External links MedStar Union Memorial Hospital MedStar Health
Melford (Mitchellville, Maryland)

Melford is a historic plantation house located on the grounds of the Maryland Science and Technology Center, near the intersection of U.S. Route 301 and U.S. Route 50, at Bowie, Prince George's County, Maryland. The house is multi-part, gable-roofed, brick and stone dwelling house constructed probably in the mid-late 1840s, with elements of the Greek Revival style. History The land that made up the Melford plantation was part of a tract, originally called Howerton's Range which was a 400-acre parcel that John Howerton obtained in 1670. It is part of Prince George's County and had historically been inhabited by the Piscataway people, an Algonquin language speaking tribe, as well as the Patuxent people and other Native American groups. Melford was built by Dr. Richard Duckett in 1810, replacing a previous structure. Dr. Richard Duckett was the brother of Allen Bowie Duckett, and the son of Thomas Duckett, who in 1796 was judge of the Prince George's County Court, and one of the principal slaveholders in the area. Melford was listed on the National Register of Historic Places in 1988. Grounds The grounds include three outbuildings: a three-bay gable-roofed slave quarter probably dating from the 18th century; a pyramidal-roofed meat house also dating from the late 18th century; and a 20th-century pyramidal-roofed pump house. The landscape consists of terraced gardens, falling away from the house on three levels. Melford was home for 140 years to two prominent local families, the Ducketts and the Hardestys. References External links Melford, Prince George's County, Inventory No.: PG:71B-16, including photo in 1974, at Maryland Historical Trust website Melford, Crain Highway (U.S. Route 301), Mitchellville, Prince George's County, MD: 25 photos and 13 data pages, at Historic American Buildings Survey Melford, Slave House, Mitchellville, Prince George's County, MD: 1 photo and 1 data page, at Historic American Buildings Survey Melford, Smokehouse, Mitchellville, Prince George's County, MD: 1 photo and 1 data page, at Historic American Buildings Survey
Memory Lane (Denton, Maryland)

Memory Lane is a historic home located at Denton, Caroline County, Maryland. It a 2+1⁄2-story, frame Italianate-style house constructed in 1864. Notable exterior features include extensive porches, decorative brackets, and an octagonal cupola. The entire front facade features a wraparound porch. Memory Lane was listed on the National Register of Historic Places in 2000. References External links Memory Lane, Caroline County, including photo from 1997, at Maryland Historical Trust
Merkle Natural Resources Management Area

Merkle Natural Resources Management Area is a wildlife refuge in Upper Marlboro, Maryland that is operated by the Maryland Department of Natural Resources. The site encompasses 1,670 acres (680 ha) and is a wintering ground and breeding area for Canada geese. It was founded by Edgar A. Merkle, the founder of Merkle Press originally in Washington, D.C., and later, in Glenn Dale, Maryland, which printed Sports Illustrated, Life, and many other publications. The Frank Oslislo Visitors Center is open on weekends and features exhibits about the life history and management of the Canada Goose and area natural history, as well as some live reptiles and amphibians. There is a five-mile Critical Area Driving Tour. Hiking trails are: Poplar Springs Trail (2.3 miles; 3.7 km) Mounds Trail (2.3 miles; 3.7 km) Paw Paw Trail (1.2 miles; 1.9 km) References External links Merkle Natural Resources Management Area - official site
Millington Wildlife Management Area

Millington Wildlife Management Area is a 4,000-acre Wildlife Management Area in Kent County, Maryland. The area is ecologically diverse, featuring hardwood forests as well as various types of wetlands, fields, and meadows. Millington supports a large variety of wildlife, including, whitetail deer, turkeys, quail, rabbits, and waterfowl, as well as protecting a number of endangered plants and animals species. The site also provides outdoor recreation as well as hunting in all established seasons. References External links Millington Wildlife Management Area
Monocacy Aqueduct

The Monocacy Aqueduct — or C&O Canal Aqueduct No. 2 — is the largest aqueduct on the Chesapeake and Ohio Canal, crossing the Monocacy River just before it empties into the Potomac River in Frederick County, Maryland, USA. The 438 foot (133.5 m) aqueduct was built by three separate contractors between 1829 and 1833 at a cost of US$127,900. Description The aqueduct is a stone masonry structure with a waterway of 19 feet at the bottom and 20 feet at the top. The towpath parapet wall is 8 feet wide and the upstream wall is 6 feet wide. Benjamin Wright, the project's chief engineer, drew the plans with 6 piers, 2 abutments and 7 arches, each with a span of 54 feet. The piers are 10 feet thick with a pilaster at each end. The aqueduct is 438 feet in length. Much of the building material was large quartzite stone blocks quarried at the base of nearby Sugarloaf Mountain. History The first contract for the aqueduct was awarded in August 1828 to Hovey and Legg, which began work in 1829. The contract was next awarded to Asher Osbourn, but by the end of 1830, it was in the hands of Byrne and Lebaron. During the American Civil War the Union used the canal to transport war materials and troops along the border between Maryland, Virginia, and points west. For this reason, the canal and the aqueducts were often under Confederate attack. There were many Confederate sympathizers among the canal employees, including Thomas Walter, keeper of Lock 27. Walter loved the South, but he loved the Monocacy Aqueduct more. When he learned that Confederate General D. H. Hill had orders to destroy it in order to halt boat traffic during the Antietam campaign in September 1862, Walter convinced Hill that draining the canal would achieve the same end. Walter saved the Monocacy Aqueduct, only for it to be threatened once again a few days later when another Confederate party attempted to blow up the aqueduct. However, the soldiers were unable to drill enough holes into the hard stone to place enough explosives to breach the structure. Granary Like at Whites Ferry, a granary was built here, having three storage bays, two passageways for the boats, and only one story. The remains of the granary are next to the parking lot. Current status The aqueduct is part of the C&O Canal National Historic Park and is administered by the National Park Service. Following damage caused to several canal structures caused by Hurricane Agnes and other flooding incidents in the early 1970s, the National Park Service and the Federal Highway Administration designed a steel banding system to stabilize the structure and installed a steel rod reinforcing system. The National Park Service and park supporters were concerned about the structural stability of the aqueduct and a major engineering evaluation was undertaken to determine stabilization needs and associated cost. The C&O Canal National Historical Park and its partners restored the aqueduct to its original appearance in 2004-2005. The aqueduct was formally rededicated in May 2005. See also Aqueducts on the C&O Canal References External links Media related to Monocacy Aqueduct at Wikimedia Commons
Monocacy Aqueduct

Monocacy Aqueduct – największy z jedenastu akweduktów wybudowanych na kanale Chesapeake i Ohio, przy ujściu rzeki Monocacy do Potomaku w amerykańskim stanie Maryland. Budowę akweduktu rozpoczęto w 1829 roku i ukończono cztery lata później. Akwedukt ma 133,5 m długości, a jego budowa kosztowała 127 900 dolarów. Granitowe bloki, z których jest zbudowany pochodzą z pobliskich kamieniołomów u podnóża góry Sugarloaf Mountain. Akwedukt został poważnie uszkodzony podczas powodzi spowodowanej przez huragan Agnes w 1972 roku. Obecnie objęty jest ochroną federalną jako część narodowego parku historycznego kanału Chesapeake i Ohio. W 2005 roku został odrestaurowany do swojego pierwotnego wyglądu. Bibliografia The Monocacy Aqueduct - An Icon of American Civil Engineering National Park Service (ang.)