is a in the of Pennsylvania in the and the county seat of Allegheny County.

The developed as a vital link of the Atlantic coast and Midwest, as the mineral-rich Allegheny Mountains led to the being contested by the  and  empires, Virginians, Whiskey Rebels, and Civil raiders.

has transformed into a hub for the health care, , and industries.  is a leader in the health care sector as the home to large medical providers such as  of Medical Center (UPMC).

The area is home to 68 colleges and universities, including  and development leaders Carnegie Mellon University and the  of . Google, Apple Inc., Bosch, , Uber, Nokia, Autodesk, Amazon,  and IBM are among 1,600 firms generating $20.7 billion in payrolls.

The area has served as the long-time headquarters for cyber engineering, robotics,   and the  navy.

The nation's fifth-largest bank, eight Fortune 500 companies, and six of the top 300 U.S. firms make their headquarters in the area, while RAND Corporation (RAND), BNY Mellon, Nova, FedEx, Bayer, and the National Institute for Occupational and Health (NIOSH) have regional bases that helped become the sixth-best area for U.S. growth.

is located in the southwest of the , at the confluence of the Allegheny River and the Monongahela River, forming the Ohio River

is known both as “the Steel ” for its more than 300 steel-related businesses and as the “ of Bridges” for its 446 bridges. 

The features 30 skyscrapers, two inclined railways, a pre-revolutionary fortification and the Point State Park at the confluence of the .

Last Updated on 2 years by pinc