Black Run [1] is a 3.9-mile-long (6.3 km) [2] tributary of Paxton Creek in Dauphin County, Pennsylvania, in the United States.
A tributary or affluent is a stream or river that flows into a larger stream or main stem river or a lake. A tributary does not flow directly into a sea or ocean. Tributaries and the main stem river drain the surrounding drainage basin of its surface water and groundwater, leading the water out into an ocean.
Paxton Creek is a 13.9-mile-long (22.4 km) tributary of the Susquehanna River in Dauphin County, Pennsylvania in the United States.
Dauphin County is a county in the U.S. state of Pennsylvania. As of the 2010 census, the population was 268,100. The county seat and the largest city is Harrisburg, Pennsylvania's state capital and tenth largest city. The county was created ("erected") on March 4, 1785, from part of Lancaster County and was named after Louis-Joseph, Dauphin of France, the first son of king Louis XVI.
Black Run begins in upper Susquehanna Township and joins Paxton Creek 6.3 miles (10.1 km) from the Susquehanna at Harrisburg.
Susquehanna Township is a township in Dauphin County, Pennsylvania, United States. The population was 24,036 at the 2010 census. This represents a 9.8% increase from the 2000 census count of 21,895. Susquehanna Township has the postal ZIP codes 17109 and 17110, which maintain the Harrisburg place name designation. The township is a suburb of Harrisburg and is connected to Marysville by the Rockville Bridge, the world's longest stone-arch rail bridge at the time of its completion.
The Susquehanna River is a major river located in the northeastern and mid-Atlantic United States. At 464 miles (747 km) long, it is the longest river on the East Coast of the United States that drains into the Atlantic Ocean. With its watershed, it is the 16th-largest river in the United States, and the longest river in the early 21st-century continental United States without commercial boat traffic.
