County Line Branch
County Line Branch (also known as the County Line Branch of Chillisquaque Creek) is a tributary of West Branch Chillisquaque Creek in Northumberland County and Montour County, in Pennsylvania, in the United States. It is approximately 8.9 miles (14.3 km) long and flows through Lewis Township in Northumberland County and Anthony and Limestone Townships in Montour County. The stream's watershed has an area of 8.97 square miles. Its tributaries include Beaver Run and McKee Run.
| County Line Branch | |
|---|---|
County Line Branch in Northumberland County | |
| Physical characteristics | |
| Source | |
| • location | Muncy Hills in Anthony Township, Montour County, Pennsylvania/Lewis Township, Northumberland County, Pennsylvania |
| Mouth | |
• location | West Branch Chillisquaque Creek in Anthony Township, Montour County, Pennsylvania |
• coordinates | 41°04′46″N 76°41′10″W |
• elevation | 518 ft (158 m) |
| Length | 8.9 mi (14.3 km) |
| Basin size | 8.97 sq mi (23.2 km2) |
| Basin features | |
| Progression | West Branch Chillisquaque Creek → Chillisquaque Creek → West Branch Susquehanna River → Susquehanna River → Chesapeake Bay |
| Tributaries | |
| • left | McKee Run |
| • right | Beaver Run |
The main rock formations in the watershed of County Line Branch are the Hamilton Group, the Onondaga and Old Port Formation, the Trimmers Rock Formation, and the Keyser and Tonoloway Formation. The soil series in the watershed include the Chenango-Pope-Holly series, the Berks-Weikert-Beddington series, the Hagerstown-Edom-Washington series, and the Watson-Berks-Alvira series. Industries in the watershed include agriculture and timbering. The Mountour County Natural Heritage Inventory lists the headwaters of County Line Branch as a "locally significant" site.