Star Gazers' Stone

Buildings and structures in Chester County, PennsylvaniaBuildings and structures on the National Register of Historic Places in PennsylvaniaHistory of the Thirteen ColoniesMason–Dixon lineNational Register of Historic Places in Chester County, Pennsylvania ... and 2 more

Surveying of the United StatesUse mdy dates from August 2023

Star Gazers' Stone located on Star Gazers' Farm near Embreeville, Pennsylvania, USA, marks the site of a temporary observatory established in January 1764 by Charles Mason and Jeremiah Dixon which they used in their survey of the Mason-Dixon line. The stone was placed by Mason and Dixon about 700 feet (213 m) north of the Harlan House, which was used as a base of operations by Mason and Dixon through the four-and-a-half-year-long survey. Selected to be about 31 miles (50 km) west of the then southernmost point in Philadelphia, the observatory was used to determine the precise latitude of its location. The latitude of the Maryland-Pennsylvania border was then set to be 15 miles (24.1 km) south of the point in Philadelphia. The farm, including the house and stone, were listed on the National Register of Historic Places on May 9, 1985. In 2013 construction was completed on a parking area to allow public access to Star Gazers Stone.Built c. 1724 near the forks of the Brandywine, the Harlan House was enlarged c.1758, and is likely the first house built in Newlin Township. The Harlan family lived in the house until 1956, and carefully preserved the location of the stone through the generations.

Excerpt from the Wikipedia article Star Gazers' Stone (License: CC BY-SA 3.0, Authors, Images).

Star Gazers' Stone
Stargazers Road, Newlin Township

Geographical coordinates (GPS) Address External links Nearby Places
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Geographical coordinates (GPS)

Latitude	Longitude
N 39.9392 °	E -75.73245 °

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Address

Star Gazers' stone

Stargazers Road
19320 Newlin Township
Pennsylvania, United States
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External links

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Nearby Places

Hayes Mill House

The Hayes Mill House is an historic, American home that is located in Newlin Township, Chester County, Pennsylvania. It was added to the National Register of Historic Places in 1985.

Jacob Hayes House

The Jacob Hayes House is an historic home that is located in Newlin Township, Chester County, Pennsylvania near the West Branch of Brandywine Creek. It was added to the National Register of Historic Places in 1985.

Hayes Homestead

Hayes Homestead, also known as Green Lawn Farm, is an historic, American home that is located in Newlin Township, Chester County, Pennsylvania. It was added to the National Register of Historic Places in 1985.

Hannah Freeman

Hannah Freeman (March 1731 – March 20, 1802), also known as "Indian Hannah," was a Lenape healer, artisan, and farmer who historically was thought to be the last surviving member of the Lenape in Chester County, Pennsylvania.

Embreeville, Pennsylvania

Embreeville is a historical unincorporated community, little more than a rural stretch of road with a few businesses and homes, in Newlin Township, Pennsylvania, United States, on a bend of Brandywine Creek. It is approximately 30 miles (48 km) west of Philadelphia, and north of Unionville. The Embreeville Historic District, which covers most of the town, is on the National Register of Historic Places.During the 19th and 20th centuries Embreeville was best known as the site of the county poor house and the Chester County Asylum for the Insane, renamed Embreeville State Hospital in 1938 and closed in 1980. Embreeville's other landmarks include the Embreeville Dam, Embreeville Mill, Pennsylvania State Police Barracks, Star Gazers' Stone, and Hannah Freeman's grave. The Star Gazers' Stone marked an important astronomical observation point used by Charles Mason and Jeremiah Dixon in 1764 in surveying the Mason-Dixon line, which lies 15 miles south of the stone. It is also the location to a Pennsylvania state police station.

Newlin Township, Pennsylvania

Newlin Township is a township in Chester County, Pennsylvania, United States. The population was 1,285 at the 2010 census. Newlin Township was the hometown of explorer Josiah Harlan and Lenape healer Hannah Freeman. William Baldwin, the botanist, was born there on the 29th of March 1779.

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Como Farm (Pennsylvania)

Como Farm is a historic farmhouse located in West Bradford Township, Chester County, in the U.S. state of Pennsylvania. Como Farm was listed on the National Register of Historic Places on September 16, 1985.

Joseph Young House

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Baily Farm

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