Question: Which County is The Branch river located in?
Context: Pancake is an unincorporated community in Hampshire County in the U.S. state of West Virginia.  Pancake is located on Pancake Road (County Route 8/2), once connecting to South Branch River Road (County Route 8) across the South Branch Potomac River.  Pancake was once a stop along the South Branch Valley Railroad and is named for the Pancake family in the immediate area.  The Pancake Post Office has been closed. The Branch River is an 11.9 mi long river located in eastern New Hampshire in the United States.  It is a tributary of the Salmon Falls River, part of the Piscataqua River watershed leading to the Atlantic Ocean. Seabrook is an unincorporated community located in Beaufort County, South Carolina, United States.  Situated in northern part of the county along the Whale Branch River, Seabrook was founded in the late 18th century as a collection of plantations became established in the area.  In the late 19th century, Seabrook became a stop on the Port Royal and Augusta Railway and featured a small, but bustling downtown area that had a federal Post Office, a general store, a gas station, and a train station.  The local economy was driven by the nearby farmland.  The village's old economy and markets have since yielded to development in Beaufort, though the Post Office remains to serve the village's remaining inhabitants.  In the past ten years, three new public schools have opened in the Seabrook area to serve area students, including Whale Branch Early College High School. Coal Branch is a Canadian unincorporated community, located in Kent County, New Brunswick.  The community is situated in southeastern New Brunswick, to the northwest of Moncton.  Coal Branch is located mainly at the intersection of New Brunswick Route 126 and New Brunswick Route 465 on the Coal Branch River.  Coal Branch is a tributary of the Richibucto River. Vermont Route 110 (VT 110) is a state highway in the U.S. state of Vermont.  The highway runs 27.136 mi from VT 14 in Royalton in northern Windsor County north to U.S. Route 302 (US 302) in the town of Barre in central Washington County.  VT 110 follows the valley of the First Branch White River through the Orange County towns of Tunbridge and Chelsea, which contain multiple historic buildings and covered bridges.  The highway also follows the Jail Branch River, a tributary of the Winooski River, through Washington and Orange. Lovell Lake is a 538 acre water body in Carroll County in eastern New Hampshire, United States, in the town of Wakefield.  The lake is both spring-fed and fed by small streams including Horse Brook.  The outlet of the lake, located at the village of Sanbornville, is the beginning of the Branch River.  From here, the Branch River flows through Milton where it joins the Salmon Falls River on the Maine-New Hampshire border.  The Salmon Falls River empties into the tidal waters of the Piscataqua River northwest of Portsmouth, New Hampshire, then into the Gulf of Maine. Mill Run is a 9.1 mi tributary stream of the South Branch Potomac River, belonging to the Potomac River and Chesapeake Bay watersheds.  The stream is located in Hampshire County in the Eastern Panhandle of the U.S. state of West Virginia.  Mill Run rises on Nathaniel Mountain and flows northeast, then northwest into the South Branch south of Romney near Hampshire Park on South Branch River Road (West Virginia Secondary Route 8). Glebe was an unincorporated community in Hampshire County, West Virginia, United States.  It is situated at the lower mouth of the Trough, a gorge of the South Branch Potomac River, and is about 9.5 miles (15.3 km) southwest of Romney on South Branch River Road (West Virginia Secondary Route 8).  The community received its name from the old stone glebehouse (parsonage) that was constructed there in the late 18th century.  The stone house later became the Hampshire County Poor Farm and remains standing.  The community of Sector lies directly across the river. The Branch is a 2.6 mi river located entirely in the city of Keene, in southwestern New Hampshire in the United States.  It is a tributary of the Ashuelot River, itself a tributary of the Connecticut River, which flows to Long Island Sound. Keene is a city in Cheshire County, New Hampshire, United States.  The population was 23,409 at the 2010 census.  It is the seat of Cheshire County.
Answer: Cheshire County