White Clay Creek State Park

Chambers House, also known as "Stairways", is a historic home located near Newark, New Castle County, Delaware. It was built between 1816 and 1852, and is a two- to three-story, Penn Plan bank house built of uncoursed fieldstone. It has a one and two story frame addition at the east of the house dated to the late 19th century.It was added to the National Register of Historic Places in 1988.

Thompson Farm, also known as the Pierson Farm, is a historic home and farm located in London Britain Township, Chester County, Pennsylvania. It has five contributing buildings. They are a brick farmhouse, a stone and frame bank barn (c. 1800), frame outhouse, chicken house, and corn crib. The farmhouse was built in 1833, and expanded in 1857.It was added to the National Register of Historic Places in 1983.

London Britain Township is a township in Chester County, Pennsylvania, United States. The population was 3,139 at the 2010 census. White Clay Creek Preserve is a Pennsylvania state park in London Britain Township along White Clay Creek.

Corner Ketch is an unincorporated community in New Castle County, Delaware, United States. Corner Ketch is located at the intersection of Corner Ketch Road and Doe Run Road, north of Newark.The origin of the name "Corner Ketch" is obscure. According to tradition, travelers were cautioned to be careful at the dangerous crossroad: "Watch out! They'll catch ye at the corners".

William Morgan Farm is a historic farm located near Newark, New Castle County, Delaware. The property includes two contributing buildings. They are a stone bank barn (1809) and a stone dwelling (1813). The barn is constructed of uncoursed, rubble fieldstone and is cornered with large fieldstone quoins. The house is a two-story, three bay, gable-roofed fieldstone building with an original two-story, gable-roofed rear ell.It was added to the National Register of Historic Places in 1986.

White Clay Creek Preserve is a 3,050-acre (1,230 ha) Pennsylvania state park along the valley of White Clay Creek in London Britain Township in Chester County, Pennsylvania in the United States. The park was donated by the DuPont Company in 1984 for the purpose of "preserving the diverse and unique plant and animal species, and the rich cultural heritage of the area". Dupont also donated an additional 528 acres (214 ha) for the adjoining White Clay Creek State Park to the state of Delaware. White Clay Creek Preserve is 3 miles (4.8 km) north of Newark, Delaware on Pennsylvania Route 896. The preserve is supported by the Friends of White Clay Creek Preserve.

David Eastburn Farm is a historic farm located near Newark, New Castle County, Delaware. The property includes eight contributing buildings: a frame bank barn (c. 1825), a stone dwelling (c. 1850), a stone tenant house possibly dating to the 18th century, and five outbuildings. The dwelling is a three-story, double pile, stuccoed stone building with a pyramidal roof crowned by a flat-roofed belvedere. It has a two-story, hip-roofed rear wing.It was added to the National Register of Historic Places in 1986.

The Mason–Dixon line, also called the Mason and Dixon line or Mason's and Dixon's line, is a demarcation line separating four U.S. states, forming part of the borders of Pennsylvania, Maryland, Delaware, and West Virginia (part of Virginia until 1863). It was surveyed between 1763 and 1767 by Charles Mason and Jeremiah Dixon as part of the resolution of a border dispute involving Maryland, Pennsylvania, and Delaware in the colonial United States. The dispute had its origins almost a century earlier in the somewhat confusing proprietary grants by King Charles I to Lord Baltimore (Maryland), and by his son King Charles II to William Penn (Pennsylvania and Delaware). The largest portion of the Mason–Dixon line, along the southern Pennsylvania border, later became informally known as the boundary between the Southern slave states and Northern free states. This usage came to prominence during the debate around the Missouri Compromise of 1820, when drawing boundaries between slave and free territory was an issue, and resurfaced during the American Civil War, with border states also coming into play. The Confederate States of America claimed the Virginia portion of the line as part of its northern border, although it never exercised meaningful control that far north – especially after West Virginia separated from Virginia and joined the Union as a separate state in 1863. It is still used today in the figurative sense of a line that separates the Northeast and South culturally, politically, and socially (see Dixie).

Mechanicsville is an unincorporated community in New Castle County, Delaware, United States.The community is located in "The Wedge", a geometric oddity arising out of ambiguity in the 18th-century border dispute settlement between the Penns and Calverts in the British North American colonies. Until 1921, Mechanicsville was claimed by both Pennsylvania and Delaware. A resolution allocated Mechanicsville and The Wedge to Delaware, which owns it today.

Wesley Methodist Episcopal Church is a historic Methodist Episcopal church located at McClellandville, New Castle County, Delaware. It was built in 1854, and is a frame, one story, one bay by three bay, gable-roofed Greek Revival-style building. It was sheathed in weatherboard and featured decorative wood shingles on the facade and corner pilasters.It was added to the National Register of Historic Places in 1983.

Milford Crossroads is an unincorporated community in New Castle County, Delaware, United States. Milford Crossroads is located along Delaware Route 72, at the intersection of Possum Park Road/Thompson Station Road and Paper Mill Road, northeast of Newark.

Broad Run is a 4.3-mile-long (6.9 km) tributary of White Clay Creek located principally in New Garden Township, Chester County, Pennsylvania, in the United States.The headwaters of Broad Run are in Kaolin, just south of Pennsylvania Route 41. Flowing southward, the stream enters a wide, deep valley. Between two hills east of Landenberg, Broad Run has been dammed to form Somerset Lake, the center of a development. Just south of the dam is the site of the Wilmington and Western Railroad's Broad Run Trestle, removed when the line to Landenberg was abandoned around 1940. Below, the valley narrows between hills again, and Broad Run enters London Britain Township and the White Clay Creek Preserve just before receiving Walnut Run. It empties into the White Clay about an eighth of a mile below. Broad Run is included in the designation of the White Clay Creek as a Wild and Scenic River.