Monessen is a city of about 7,700 people. It is located south of Pittsburgh, in a depressed region known as the "Mon Valley." Monessen is a former steel town (Wheeling - Pittsburgh Steel closed its Monessen operations in 1986). The city's peak population was 20,257 in 1940. As for the condition of the town, I'll let the pictures speak for themselves. This is the downtown area.