The Monongahela River is a major waterway flowing northward through West Virginia and Pennsylvania, joining with the Allegheny River in Pittsburgh to form the Ohio River. Stretching approximately 130 miles from Fairmont, WV to Pittsburgh, PA, the Mon provides diverse fishing opportunities with its combination of flowing river sections and navigation pools created by a series of locks and dams. The river's recovery from historical industrial pollution has created a thriving fishery with excellent smallmouth bass, walleye, and sauger populations. With relatively stable water levels maintained by the lock and dam system, the Mon offers consistent fishing conditions throughout much of the year, making it a reliable destination for anglers throughout western Pennsylvania and northern West Virginia.