MCKEESPORT, a city of Allegheny county, Pennsylvania, U.S.A., at the confluence of the Monongahela and Youghiogheny rivers (both of which are navigable), 14 m.
The Monongahela from Pittsburg to the West Virginia state line (91.5 m.) was improved in 1836 sqq.
The more attractive residential districts are on the plateau in the eastern portion of the district between the Allegheny and Monongahela rivers and on the hills overlooking the Allegheny river from the north.
The Monongahela is an older stream, but like the Allegheny, it meanders much, and both rivers flow in deeply intrenched valleys.
Overlooking the Monongahela river is Schenley Park (about 422 acres), the first city park, of which about 400 acres were given to the city in 1890 by Mrs. Mary E.
PITTSBURG, or PITTSBURGH, 1 the second largest city of Pennsylvania, U.S.A., and the county-seat of Allegheny county, on the Allegheny, Monongahela and Ohio rivers, 440 m.
The tongue of land formed by the confluence of the Monongahela and Allegheny rivers, was a much more favourable situation for a fort and trading post than the one about two miles up the Monongahela (near the present site of McKees Rocks) which had been tentatively selected by the Ohio Company.
Coal is brought to the city from the coalfields by boats on the Allegheny and Monongahela rivers as well as by rail, and great fleets of barges carry coal and other heavy freight, such as steel rails, cotton ties, sheet iron, wire and nails, down the Ohio in the winter and spring.
CHARLEROI, a borough of Washington county, Pennsylvania, U.S.A., on the Monongahela river, near the S.W.
The Monongahela has been improved by locks and dams to Fairmont.