When it was part of Virginia Monongahela County consisted of all of the 4 counties in the SW corner of Pennsylvania, pieces of a couple of others and the far western end of Maryland. at that time the major community was Fort Pitt (now Pittsburgh). I don't think this county exists today but did include Green, Somerset, Washington, Aleghenny and Fayette Counties The other river in Pittsburgh is the Ohio. -- Loren    {:-)>     HOKC          ×)))))    TSG, USAF, Retired    From Iola, in the rolling hills of SE Kansas God gives us relatives, but allows us to choose friends.