Mill Creek is a tributary

Tributary

A tributary or affluent is a stream or river that flows into a main stem river or a lake. A tributary does not flow directly into a sea or ocean...

 of the Clarion River

Clarion River

The Clarion River is a tributary of the Allegheny River, approximately 110 mi long, in west central Pennsylvania in the United States...

 in Clarion

Clarion County, Pennsylvania

As of the census of 2000, there were 41,765 people, 16,052 households, and 10,738 families residing in the county. The population density was 69 people per square mile . There were 19,426 housing units at an average density of 32 per square mile...

 and Jefferson

Jefferson County, Pennsylvania

Jefferson County is a county located in the U.S. state of Pennsylvania. In 2010, its population was 45,200. It was established on March 26, 1804, from part of Lycoming County and named for then-President Thomas Jefferson. Its county seat is Brookville...

 counties in the U.S. state of Pennsylvania

Pennsylvania

The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...

.

Course

Mill Creek joins the Clarion River near the borough of Strattanville

Strattanville, Pennsylvania

Strattanville is a borough in Clarion County, Pennsylvania, United States. The population was 542 at the 2000 census.-Geography:Strattanville is located at ....

.

Biology

The stream receives three trout stockings per year. The first is in the spring before the opening day of the Pennsylvania trout season. The other two are in season stockings in the month of May. The Pennsylvania Fish and Boat Commission

Pennsylvania Fish and Boat Commission

The Pennsylvania Fish and Boat Commission is the state agency responsible for the regulation of all fishing and boating in the Commonwealth of Pennsylvania...

only stocks brook trout in this creek.