Mill Branch is a 9.1 miles (14.6 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...

 stream

Stream

A stream is a body of water with a current, confined within a bed and stream banks. Depending on its locale or certain characteristics, a stream may be referred to as a branch, brook, beck, burn, creek, "crick", gill , kill, lick, rill, river, syke, bayou, rivulet, streamage, wash, run or...

 of the Cacapon River

Cacapon River

The Cacapon River , located in the Appalachian Mountains of West Virginia's Eastern Panhandle region, is an river known for its fishing, boating, wildlife, and scenery...

, belonging to the Potomac River

Potomac River

The Potomac River flows into the Chesapeake Bay, located along the mid-Atlantic coast of the United States. The river is approximately long, with a drainage area of about 14,700 square miles...

 and Chesapeake Bay

Chesapeake Bay

The Chesapeake Bay is the largest estuary in the United States. It lies off the Atlantic Ocean, surrounded by Maryland and Virginia. The Chesapeake Bay's drainage basin covers in the District of Columbia and parts of six states: New York, Pennsylvania, Delaware, Maryland, Virginia, and West...

 watersheds

Drainage basin

A drainage basin is an extent or an area of land where surface water from rain and melting snow or ice converges to a single point, usually the exit of the basin, where the waters join another waterbody, such as a river, lake, reservoir, estuary, wetland, sea, or ocean...

. The stream is located in eastern Hampshire County

Hampshire County, West Virginia

Hampshire County is a county located in the U.S. state of West Virginia. As of 2010, the population was 23,964. Its county seat is Romney, West Virginia's oldest town . Hampshire County was created by the Virginia General Assembly on December 13, 1753, from parts of Frederick and Augusta counties ...

 in West Virginia

West Virginia

West Virginia is a state in the Appalachian and Southeastern regions of the United States, bordered by Virginia to the southeast, Kentucky to the southwest, Ohio to the northwest, Pennsylvania to the northeast and Maryland to the east...

's Eastern Panhandle.

Headwaters and course

Mill Branch rises from mountain springs on Timber Ridge

Timber Ridge

Timber Ridge is a mountain ridge of the Ridge-and-valley Appalachians straddling the U.S. states of Virginia and West Virginia. Timber Ridge extends from the forks of Sleepy Creek at Stotlers Crossroads in Morgan County, West Virginia, to Lehew in Hampshire County, West Virginia...

 (1,306 feet/398 m) south of West Virginia Route 127 near the community of Good

Good, West Virginia

Good is an unincorporated community in northeastern Hampshire County, West Virginia, USA atop Bear Garden Mountain. Good is located on the Bloomery Pike at I.L. Pugh Road east of Bloomery and northwest of Winchester on the West Virginia/Virginia border...

. The stream meanders in a southwesterly direction along the western flanks of Timber Ridge, with Bear Garden Mountain

Bear Garden Mountain

Bear Garden Mountain is a forested mountain ridge of the Ridge-and-valley Appalachians in Hampshire County, West Virginia and Frederick County, Virginia.- Geography :...

 (1,339 feet/408 m) bounding it to its west. Mill Branch continues to flow in a southwesterly direction between the two mountain ridges with Smokey Hollow Road (West Virginia Secondary Route 6) paralleling the stream to its east. The stream flows beneath the Northwestern Turnpike

Northwestern Turnpike

The Northwestern Turnpike is a historic road in West Virginia , important for being historically one of the major roads crossing the Appalachians, financed by the Virginia Board of Public Works in the 1830s. In modern times, west of Winchester, Virginia, U.S...

 (U.S. Highway 50), continuing to flow along the eastern flank of Bear Garden Mountain. At the southern edge of Bear Garden Mountain, Mill Branch curves to the northwest and shortly after flowing beneath Christian Church Road, it empties into the Cacapon River

Cacapon River

The Cacapon River , located in the Appalachian Mountains of West Virginia's Eastern Panhandle region, is an river known for its fishing, boating, wildlife, and scenery...

 south of Capon Bridge

Capon Bridge, West Virginia

Capon Bridge is a town located in eastern Hampshire County, West Virginia along the Northwestern Turnpike , approximately twenty miles west of Winchester, Virginia. As of the 2000 census, the town population was 2,178, 200 of which live within the town limits. Originally known as Glencoe, Capon...

.