Briar Creek is a tributary of the Susquehanna River in Columbia County, Pennsylvania, in the United States. It is 7.77mi in length. The stream has a watershed area of 33.0 square miles. It flows through Briar Creek Township and the borough of Briar Creek. The area near the creek was originally inhabited by the Lenni Lenape and the Shawanese. European settlers arrived in the 1770s.Briar Creek has two named tributaries: West Branch Briar Creek and East Branch Briar Creek. The discharge of Briar Creek ranges from 0.06 to 50 cubic feet per second. The water temperature of the creek ranges from 32F to 80.96F. The rock in the watershed mostly consists of sandstone, siltstone, mudstone, limestone, and shale.There are Pennsylvania State Game Lands in the watershed, as well as a lake known as the Briar Creek Reservoir. In the lake, the most common species of fish is yellow perch.CourseBriar Creek begins where Knob Mountain, Huntington Mountain, and Lee Mountain meet in western Briar Creek Township. It flows east for a short distance before turning south through a gap in Lee Mountain, briefly descending quite steeply. The course levels out as it leaves the mountain behind and begins flowing through a valley after a short distance. It flows under Pennsylvania Route 93, leaving the valley behind. Soon afterwards, the stream picks up the tributary West Branch Briar Creek and turns southeast. After some distance, it enters the community of Briar Creek and picks up the tributary East Branch Briar Creek. The stream then turns southwest and reaches its confluence with the Susquehanna River near French Island.
