Monongahela or Mon Valley may refer to:

Places

Monongahela, Pennsylvania Monongahela, referred to locally as Mon City, is a third class city in Washington County, Pennsylvania, United States. It is part of the Pittsburgh, PA Metropolitan Statistical Area, and is about south of Pittsburgh proper. The population was 4 ...

, a city in Washington County **

Monongahela Cemetery The Monongahela Cemetery is an historic rural cemetery in Monongahela, Pennsylvania that was established in 1863. Landscape architects Hare & Hare designed a portion of the property. History and notable features The cemetery was listed on the U.S ...

, a historic cemetery in Monongahela City, Pennsylvania ** Monongahela City Bridge, spans the Monongahela River *

Monongahela National Forest The Monongahela National Forest is a national forest located in the Allegheny Mountains of eastern West Virginia, USA. It protects over of federally managed land within a proclamation boundary that includes much of the Potomac Highlands Regi ...

, a national forest in eastern West Virginia *

Monongahela River The Monongahela River ( , )—often referred to locally as the Mon ()—is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map accessed August 15, 2011 river on the Allegheny Plateau in North Cen ...

, a tributary of the Ohio River **

Battle of the Monongahela The Battle of the Monongahela (also known as the Battle of Braddock's Field and the Battle of the Wilderness) took place on 9 July 1755, at the beginning of the French and Indian War, at Braddock's Field in what is now Braddock, Pennsylvania, ea ...

(9 July 1755), at the beginning of the French and Indian War *

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 form ...

, former Proglacial lake in Pennsylvania, West Virginia, and Ohio *

Monongahela Formation The Monongahela Formation is a geologic formation in West Virginia, Pennsylvania, Ohio, and Maryland. It preserves fossils dating back to the Carboniferous and Permian periods. See also * List of fossiliferous stratigraphic units in West Virgin ...

, a geologic group

Railways

Monongahela Railway The Monongahela Railway was a coal-hauling short line railroad in Pennsylvania and West Virginia in the United States. It was jointly controlled originally by the Pennsylvania Railroad, New York Central subsidiary Pittsburgh and Lake Erie Rail ...

, a coal-hauling short line railroad in Pennsylvania and West Virginia in the United States *

Monongahela Connecting Railroad The Monongahela Connecting Railroad or Mon Conn is a small industrial railroad in Pittsburgh, Pennsylvania. It was a subsidiary of the Jones & Laughlin Steel Company and a large portion of its work was for its parent company, though it also serv ...

, a small industrial railroad in Pittsburgh, Pennsylvania *

Monongahela Freight Incline The Monongahela Freight Incline was a funicular railway that scaled Mount Washington in Pittsburgh, Pennsylvania, United States. Designed by Samuel Diescher and John Endres, both immigrants from Europe, the incline was built beside the smaller, ...

, a funicular railway that scaled Mount Washington *

Monongahela Incline The Monongahela Incline is a funicular located near the Smithfield Street Bridge in Pittsburgh, Pennsylvania. Designed and built by Prussian-born engineer John Endres in 1870, it is the oldest continuously operating funicular in the United Sta ...

, a funicular located near the Smithfield Street Bridge in Pittsburgh, Pennsylvania

Other

* ''Monongahela'' (album), a 1988 album by The Oak Ridge Boys * ''Monongahela'' (fish), a genus of prehistoric fish *''

Monongahela virus Monongahela virus (MGLV) is a single-stranded, negative-sense ''Orthohantavirus'' virus of zoonotic origin that causes hantavirus pulmonary syndrome. Discovery of virus Monongahela virus was first detected in '' Peromyscus maniculatus nubiter ...

'', an Orthohantavirus *

Monongahela culture The Monongahela culture were an Iroquoian Native American cultural manifestation of Late Woodland peoples from AD 1050 to 1635 in present-day western Pennsylvania, western Maryland, eastern Ohio, and West Virginia. The culture was named by Mary ...

, a Native American group * USS ''Monongahela'', one of various ships of the United States Navy * the ''Mon Valley'', a variant name of the

PATrain The PATrain, also known as Mon Valley Commuter Rail, was a commuter rail service owned by the Port Authority of Allegheny County in the Monongahela Valley in the US state of Pennsylvania. Service began in 1975 when the Port Authority assumed owne ...

commuter rail service *''Monongahela'', a whaleship lost in 1853. {{disambiguation, geo