White Clay Creek Preserve

Lunn's Tavern, also known as The Wilkins Property, is a historic inn and tavern located in London Britain Township, Chester County, Pennsylvania. It has three sections. The original section was built about 1760, and is a two-story, stone structure with a gambrel roof. Part of the original section was altered when the brick addition was made in 1830. The modifications included adding stucco to the stone exterior walls and modifying the roof to the gable style. The 1830 brick addition has a wooden porch structure. It was the site of the writing of a famous letter from Thomas McKean to George Read on September 26, 1777, detailing the situation in Delaware and his actions upon assuming the presidency of the State of Delaware.It was added to the National Register of Historic Places in 1979.

Strickersville is an unincorporated community in extreme southeastern Chester County, Pennsylvania, United States. It is located at the intersection of Pennsylvania Route 896 and Strickersville Road in London Britain Township. While it once supported a number of small businesses in the late 19th century, today its location is marked only by the aforementioned crossroads and several historic homes. Lunn's Tavern, a large stone and brick building just north of the Strickersville Road intersection, is a listed in the National Register of Historic Places.

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.

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.

The Delaware–Maryland–Pennsylvania Tri-State Point is the meeting of the northwestern corner of Delaware, the northeastern corner of Maryland, and the southern edge of Pennsylvania. A wooden marker was placed in 1765, by Charles Mason and Jeremiah Dixon, and was replaced with a stone marker in 1849. A trail to the marker was made in 2014–2015.

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.

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.

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).

White Clay Creek State Park is a Delaware state park along White Clay Creek on 3,647 acres (1,476 ha) in New Castle County, near Newark, Delaware in the United States. North of the park is Pennsylvania's White Clay Creek Preserve, and the two were originally operated as bi-state parks to jointly protect the creek, but now they operate separately. The White Clay Creek is federally protected as part of the National Park Service's National Wild and Scenic Rivers System. White Clay Creek State Park offers 37 miles (60 km) of nature and fitness trails which are open to hiking and mountain biking 365 days a year with access at a number of seasonal day-use fee parking lots. Fee season is in effect March 1 - November 30. Fees are $4 for in-state vehicle or $8 for out of state vehicles. Annual passes can be purchased at any DE State Park Office or online. The park also preserves a number of historic structures and operates a nature center. It is part of the Northeastern coastal forests ecoregion.

The Wedge (or Delaware Wedge) is a 1.068-square-mile (684-acre; 2.77 km2) tract of land along the borders of Delaware, Maryland and Pennsylvania. Ownership of the land was disputed until 1921; it is now recognized as part of Delaware. The tract was created primarily by the shortcomings of contemporary surveying techniques when the boundaries were defined in the 18th century. It is bounded on the north by an eastern extension of the east–west portion of the Mason–Dixon line, on the west by the north–south portion of the Mason–Dixon line, and on the southeast by the Twelve-Mile Circle around New Castle, Delaware. The crossroads community of Mechanicsville, Delaware, lies within the area 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.

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.