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Lake Monongahela
Lake Monongahela was a proglacial lake in western Pennsylvania, West Virginia, and Ohio. It formed during the Pre-Illinoian ice epoch when the retreat of the ice sheet northwards blocked the drainage of these valleys to the north. The lake formed south of the ice front continued to rise until it was able to breach a low divide near New Martinsville, West Virginia. The overflow was the beginning of the process which created the modern Ohio River valley. Preglacial drainage The Monongahela flowed north from Lewis County to Pittsburgh. Here, the Lower Allegheny joined and they continued westward in the Ohio River valley to Beaver, Pennsylvania. At Beaver, the predecessor of the upper Ohio River joined and together the water flowed northwest, up the Beaver River into Ohio. Using a combination of waterways it crossed the divide into the Lake Erie basin to join the ancestral St. Lawrence River through Canada. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pennsylvania
Pennsylvania (; ( Pennsylvania Dutch: )), officially the Commonwealth of Pennsylvania, is a state spanning the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes regions of the United States. It borders Delaware to its southeast, Maryland to its south, West Virginia to its southwest, Ohio to its west, Lake Erie and the Canadian province of Ontario to its northwest, New York to its north, and the Delaware River and New Jersey to its east. Pennsylvania is the fifth-most populous state in the nation with over 13 million residents as of 2020. It is the 33rd-largest state by area and ranks ninth among all states in population density. The southeastern Delaware Valley metropolitan area comprises and surrounds Philadelphia, the state's largest and nation's sixth most populous city. Another 2.37 million reside in Greater Pittsburgh in the southwest, centered around Pittsburgh, the state's second-largest and Western Pennsylvania's largest city. The state's su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Warren County, Pennsylvania
Warren County is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population was 38,587. Its county seat is Warren. The county was formed in 1800 from parts of Allegheny and Lycoming counties; attached to Crawford County until 1805 and then to Venango County until Warren was formally organized in 1819. Warren County makes up the Warren, Pennsylvania micropolitan statistical area. Geography According to the U.S. Census Bureau, the county has a total area of , of which is land and (1.6%) is water. Notable physical features include the Allegheny River, the Allegheny Reservoir, the Kinzua Dam, and the Allegheny National Forest. The county has a warm-summer humid continental climate (''Dfb'') and average temperatures in the city of Warren range from 24.5 °F in January to 69.3 °F in July Climate Adjacent counties *Chautauqua County, New York (north) *Cattaraugus County, New York (northeast) * McKean County (east) * Elk County (southeast) * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Landforms
A landform is a natural or anthropogenic land feature on the solid surface of the Earth or other planetary body. Landforms together make up a given terrain, and their arrangement in the landscape is known as topography. Landforms include hills, mountains, canyons, and valleys, as well as shoreline features such as bays, peninsulas, and seas, including submerged features such as mid-ocean ridges, volcanoes, and the great ocean basins. Physical characteristics Landforms are categorized by characteristic physical attributes such as elevation, slope, orientation, stratification, rock exposure and soil type. Gross physical features or landforms include intuitive elements such as berms, mounds, hills, ridges, cliffs, valleys, rivers, peninsulas, volcanoes, and numerous other structural and size-scaled (e.g. ponds vs. lakes, hills vs. mountains) elements including various kinds of inland and oceanic waterbodies and sub-surface features. Mountains, hills, plateaux, and plains are the fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teays River
The Teays River (pronounced taze) was a major preglacial river that drained much of the present Ohio River watershed, but took a more northerly downstream course. Traces of the Teays across northern Ohio and Indiana are represented by a network of river valleys. The largest still existing contributor to the former Teays River is the Kanawha River in West Virginia, which is itself an extension of the New River. The name "Teays," from the much smaller Teays Valley still extant above the surface, has been associated with the river and the remainder of its related buried valley since 1910.The Glacial Boundary in Western Pennsylvania, Ohio, Kentucky, Indiana, and Illinois; George Frederick Weight; Bulletin of the United States Geological Survey No. 58; Washington, Government Printing Office; 1890; pg 86-88 The more appropriate name would be the Ancestral Kanawha Valley.Glacial Geology of Wabash County, Indiana: William J. Wayne and William D. Thornbury; Indiana Department of Conserva ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pittsburgh, Pennsylvania
Pittsburgh ( ) is a city in the Commonwealth (U.S. state), Commonwealth of Pennsylvania, United States, and the county seat of Allegheny County, Pennsylvania, Allegheny County. It is the most populous city in both Allegheny County and Western Pennsylvania, the List of municipalities in Pennsylvania#Municipalities, second-most populous city in Pennsylvania behind Philadelphia, and the List of United States cities by population, 68th-largest city in the U.S. with a population of 302,971 as of the 2020 United States census, 2020 census. The city anchors the Pittsburgh metropolitan area of Western Pennsylvania; its population of 2.37 million is the largest in both the Ohio Valley and Appalachia, the Pennsylvania metropolitan areas, second-largest in Pennsylvania, and the List of metropolitan statistical areas, 27th-largest in the U.S. It is the principal city of the greater Pittsburgh–New Castle–Weirton combined statistical area that extends into Ohio and West Virginia. Pitts ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allegheny River
The Allegheny River ( ) is a long headwater stream of the Ohio River in western Pennsylvania and New York (state), New York. The Allegheny River runs from its headwaters just below the middle of Pennsylvania's northern border northwesterly into New York then in a zigzag southwesterly across the border and through Western Pennsylvania to join the Monongahela River at the Forks of the Ohio on the "Point" of Point State Park in Downtown Pittsburgh, Pennsylvania. The Allegheny River is, by volume, the main headstream of both the Ohio and Mississippi Rivers. Historically, the Allegheny was considered to be the upper Ohio River by both Native Americans and European settlers. The shallow river has been made navigable upstream from Pittsburgh to East Brady, Pennsylvania, East Brady by a series of locks and dams constructed in the early 20th century. A 24-mile long portion of the upper river in Warren County, Pennsylvania, Warren and McKean County, Pennsylvania, McKean counties of Pennsy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jefferson County, Pennsylvania
Jefferson County is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population was 44,492. Its county seat is Brookville. The county was established on March 26, 1804, from part of Lycoming County and later organized in 1830. It is named for President Thomas Jefferson. It is home to Punxsutawney Phil, the most famous groundhog that predicts when spring will come every February 2 on Groundhog Day. Geography According to the U.S. Census Bureau, the county has a total area of , of which is land and (0.7%) is water. It has a warm-summer humid continental climate (''Dfb'') and average monthly temperatures in Brookville range from 24.8 °F in January to 68.8 °F in July, while in Punxsutawney they range from 25.7 °F in January to 69.6 °F in July Adjacent counties * Forest County, Pennsylvania, Forest County (northwest) * Elk County (northeast) * Clearfield County (east) * Indiana County (south) * Armstrong County (southwest) * Clar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forest County, Pennsylvania
Forest County is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population was 6,973, making it the third-least populous county in Pennsylvania. Its county seat is Tionesta. The county was created in 1848 and later organized in 1857. History Forest County was created on April 11, 1848, from part of Jefferson County. The county was enlarged on October 31, 1866, when part of Venango County was incorporated into the county. Forest County was named for the forests contained within its limits. Geography According to the U.S. Census Bureau, the county has a total area of , of which is land and (0.8%) is water. It has a warm-summer humid continental climate (''Dfb'') and average monthly temperatures in Tionesta range from 25.3 °F in January to 69.8 °F in July Adjacent counties * Warren County, Pennsylvania, Warren County (north) * McKean County (northeast) * Elk County (east) * Jefferson County (south) *Clarion County (south) * Venango Coun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elk County, Pennsylvania
Elk County is a County (United States), county in the Commonwealth (U.S. state), Commonwealth of Pennsylvania. As of the 2020 United States census, the population was 30,990. Its county seat is Ridgway, Pennsylvania, Ridgway. The county was created on April 18, 1843, from parts of Jefferson County, Pennsylvania, Jefferson, Clearfield County, Pennsylvania, Clearfield, and McKean County, Pennsylvania, McKean Counties, and is named for the eastern elk (''Cervus canadensis canadensis'') that historically inhabited the region. The county is notable for having one of the highest concentrations of Catholic Church, Roman Catholics in the United States, with 69% of the county's residents identifying as Catholic. Geography Elk County consists of low rolling hills, carved by frequent drainages and heavily wooded. According to the United States Census Bureau, the county has a total area of , of which is land and (0.6%) is water. Elk has a warm-summer humid continental climate (''Dfb'') ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clarion River
The Clarion River is a tributary of the Allegheny River, approximately 110 mi (177 km) long, in west central Pennsylvania in the United States. It drains a rugged area of the Allegheny Plateau in the Ohio River watershed, flowing through narrow serpentine valleys and hardwood forests. Course The river is formed at Johnsonburg in central Elk County by the confluence of its East and West Branches. The East Branch, approximately 15 mi (24 km) long, rises in northeastern Elk County and flows southwest through East Branch Clarion River Lake to join the West Branch. The river flows generally west-southwest across western Pennsylvania in a tight meandering course past Ridgway and Clarion. It joins the Allegheny from the east in western Clarion County approximately 5 mi (8 km) south of Emlenton. The Clarion is a designated part of the National Wild and Scenic River program. Discharges History Before 1817, the Clarion River was more commonly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erie, Pennsylvania
Erie (; ) is a city on the south shore of Lake Erie and the county seat of Erie County, Pennsylvania, United States. Erie is the fifth largest city in Pennsylvania and the largest city in Northwestern Pennsylvania with a population of 94,831 at the 2020 census. The estimated population in 2021 had decreased to 93,928. The Erie metropolitan area, equivalent to all of Erie County, consists of 266,096 residents. The Erie-Meadville combined statistical area had a population of 369,331 at the 2010 census. Erie is roughly equidistant from Buffalo and Cleveland, each being about 100 miles (160 kilometers) away. Erie's manufacturing sector remains prominent in the local economy, though insurance, healthcare, higher education, technology, service industries, and tourism are emerging as significant economic drivers. As with the other Great Lakes port cities, Erie is accessible to the oceans via the Lake Ontario and St. Lawrence River network in Canada. The local climate is humid, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
French Creek (Allegheny River)
French Creek (also known as the Venango River) is a tributary of the Allegheny River in northwestern Pennsylvania and western New York (state), New York in the United States. Name The stream has been sometimes called a river and sometimes a creek. It is thought that the stream's Seneca language, Seneca name, ''in nungash'', was modified over time to ''Venango''. The phrase ''in nungash'' may have derived from ''Onenga'', the Seneca word for American mink, mink, or it may have stemmed from ''Winingus'', the Delaware languages, Delaware (Lenape) word for the same animal. Interpretations of ''Venango'' have included "crooked", and the Seneca chief Cornplanter suggested that ''in nungash'' referred to a particular carving on a tree along the stream. ''Venango'' was likewise the name of a native settlement at the creek's mouth, later the site of Franklin, Pennsylvania. In the 18th century, the stream was an important link between the Great Lakes and the Ohio River. The French built ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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