Warm Spring Run is an 11.9 miles (19.2 km) non-navigable 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 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...

 in Morgan County

Morgan County, West Virginia

Morgan County is a county located in the U.S. state of West Virginia. As of 2010, it's population was 17,541. Its county seat is Berkeley Springs. The county is one of three in Hagerstown-Martinsburg, MD-WV Metropolitan Statistical Area...

 of 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. It rises on the eastern side of Warm Springs Ridge (1,115 feet) and parallels U.S. Route 522

U.S. Route 522

U.S. Route 522 is a spur route of U.S. Route 22 in the eastern United States. The southern terminus of the route is at U.S. Route 60 in Powhatan, Virginia. The northern terminus is at U.S. Route 11 and U.S. Route 15 in Selinsgrove, Pennsylvania. US 522 passes through the states of Virginia, West...

 for most of its course. Warm Spring Run enters the Potomac River at Hancock

Hancock, West Virginia

Hancock is an unincorporated hamlet in Morgan County in the U.S. state of West Virginia's Eastern Panhandle. It is located off of Hancock Road on River Road along the Potomac River north of Berkeley Springs...

. Warm Spring Run is primarily fed by springs on Warm Springs Ridge, the most well-known of these being the springs at Berkeley Springs State Park

Berkeley Springs State Park

Berkeley Springs State Park is a state park located in the center of Berkeley Springs, West Virginia. The centerpieces of this park are the spa facilities. These waters are currently and historically billed as having medicinal or restorative powers, generally taken internally for digestive...

 in Berkeley Springs

Bath (Berkeley Springs), West Virginia

Bath is a town in the Eastern Panhandle of West Virginia, United States. It is the county seat of Morgan County. The town is incorporated as Bath, but it is often referred to by the name of its post office, Berkeley Springs. The population of the town was 663 according to the 2000 United States...

 through which it flows.

List of cities and towns along Warm Spring Run

• Berkeley Springs
  Bath (Berkeley Springs), West Virginia
  Bath is a town in the Eastern Panhandle of West Virginia, United States. It is the county seat of Morgan County. The town is incorporated as Bath, but it is often referred to by the name of its post office, Berkeley Springs. The population of the town was 663 according to the 2000 United States...
  
  
• Berryville
  Berryville, West Virginia
  Berryville is a former independent community in Morgan County in the U.S. state of West Virginia. Located south of downtown Berkeley Springs, Berryville sprouted up along U.S. Route 522 at the beginning of the 20th century; first as a farming community and then as a residential extension of a...
  
  
• Burnt Factory
  Burnt Factory, West Virginia
  Burnt Factory is an unincorporated community in Morgan County, West Virginia north of Berkeley Springs. It is located along Sand Mine Road off of Hancock Road and is the site of the U.S. Silica Company's Berkeley Springs plant. U.S. Silica is a leading producer of high quality ground and unground...
  
  
• Hancock
  Hancock, West Virginia
  Hancock is an unincorporated hamlet in Morgan County in the U.S. state of West Virginia's Eastern Panhandle. It is located off of Hancock Road on River Road along the Potomac River north of Berkeley Springs...
  
  
• Jimtown
  Jimtown, Morgan County, West Virginia
  Jimtown is an unincorporated community in Morgan County in the U.S. state of West Virginia. Because of its proximity to the north of the Town of Bath limits, Jimtown is generally considered a neighborhood of Berkeley Springs. The community is also referred to as Jimstown....
  
  
• North Berkeley
  North Berkeley, West Virginia
  North Berkeley is an unincorporated community in Morgan County in the U.S. state of West Virginia's Eastern Panhandle. The community lies between the Town of Bath limits and Jimtown. Like Jimtown, North Berkeley does not lie within the limits of Berkeley Springs proper, but it is generally...