Federal RunFederal Run is a long 3rd order tributary to Muddy Creek in Crawford County, Pennsylvania. This is the only stream of this name in the United States.CourseFederal Run rises about 0.25 miles north-northwest of Kings Corners, Pennsylvania, and then flows southerly to join Muddy Creek about 0.5 miles north-northwest of Little Cooley, Pennsylvania.WatershedFederal Run drains of area, receives about 45.6 in/year of precipitation, has a wetness index of 442.71, and is about 43% forested.