Task: Question Generation
Input (English): Passage: The Valley View house is about 1 mile (1.6 km) northwest of downtown Romney, atop a promontory (known locally as the Yellow Banks) where Depot Valley joins the South Branch Potomac River valley. Depot Valley runs 0.5 miles (0.8 km) from West Sioux Lane in Romney to Valley View, and an unnamed tributary of Big Run flows north along its bottom. Depot Valley Road parallels the stream.Depot Valley is named for Romney Depot, located at the end of a former spur of the Baltimore and Ohio Railroad (B&O) South Branch line near the intersection of present-day West Sioux Lane and Depot Valley Road. The unincorporated area around the depot was once known as Valley. A post office operated there from 1928 until 1937, when its mail was routed through Romney; it is assumed that Valley View farm used it, since it was 0.5 miles (0.8 km) south of the house.The Valley View farm property adjoins the Wappocomo farm on the northeast, the corporate limits of Romney on the east and south and the Yellow Banks on the west. As well as Valley View's 6.63-acre (2.68 ha) tract, the Mayhew family owns agricultural land rich in alluvial soils along the South Branch Potomac River west of the house. The South Branch Valley Railroad bisects this farmland, crossing the South Branch Potomac River via a wooden trestle.Valley View Island, an island in the South Branch Potomac River just north of the mouth of Sulphur Spring Run, is approximately 0.5 miles (0.8 km) southwest of the Valley View house. Both the house and the island are owned by the Mayhew family. The island is ringed by forests, with agricultural fields in its center. When Lots Number 17 and 19 of the Northern Neck Proprietary South Branch Survey were surveyed in 1749 and resurveyed in 1788, the island belonged to Lot Number 19. At that time, the river flowed east of the island, along the base of the Yellow Banks; its course later changed to run around the west side of the island.Mill Creek Mountain, a narrow anticlinal mountain ridge, rises westward from the South Branch Potomac River across from Valley View. The western foothills of South Branch Mountain rise to the east. Both mountains are covered with Appalachian – Blue Ridge forests of hardwoods and pine.
Output (English): What farmland does the South Branch Valley Railroad bisect?