The West Branch Piscataquis River is a 22 miles (35.4 km) 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 Piscataquis River

Piscataquis River

The Piscataquis River is a major tributary of the Penobscot River, found in Piscataquis County, Maine, United States. It starts from the confluence of its East Branch and West Branch in Blanchard. The river flows in a mostly eastern direction until it meets the Penobscot at Howland...

 in Piscataquis County

Piscataquis County, Maine

Piscataquis County is a county located in the U.S. state of Maine. In 2010, its population was 17,535, making it Maine's least-populous county. Its county seat is Dover-Foxcroft....

, Maine

Maine

Maine is a state in the New England region of the northeastern United States, bordered by the Atlantic Ocean to the east and south, New Hampshire to the west, and the Canadian provinces of Quebec to the northwest and New Brunswick to the northeast. Maine is both the northernmost and easternmost...

. Its source (45.3831°N 69.7515 °W) is in East Moxie, Somerset County

Somerset County, Maine

Somerset County is a county located in the U.S. state of Maine. As of 2010, the population was 52,228. Its county seat is Skowhegan.-History:...

 (Maine Township 2, Range 4, BKP EKR).
The river runs about 6 miles (10 km) east, then 11 miles (17.7 km) south, then 5 miles (8 km) east to its confluence

Confluence

Confluence, in geography, describes the meeting of two or more bodies of water.Confluence may also refer to:* Confluence , a property of term rewriting systems...

 with the East Branch Piscataquis River

East Branch Piscataquis River

The East Branch Piscataquis River is a tributary of the Piscataquis River in Piscataquis County, Maine. From its source in Little Squaw , it runs south to its confluence with the West Branch Piscataquis River in Blanchard to form the Piscataquis.The Appalachian Trail crosses the East Branch just...

 in Blanchard

Blanchard, Maine

Blanchard is an unorganized territory in Piscataquis County, Maine, United States. The population was 83 at the 2000 census.-Geography:...

 to form the Piscataquis.

The Appalachian Trail

Appalachian Trail

The Appalachian National Scenic Trail, generally known as the Appalachian Trail or simply the AT, is a marked hiking trail in the eastern United States extending between Springer Mountain in Georgia and Mount Katahdin in Maine. It is approximately long...

crosses the West Branch just below Bald Mountain Stream, and runs along the north bank of the river for about 4 miles (6 km) in Blanchard, to the joining with the East Branch.