The Twelve-Mile Circle is an approximately circular arc that forms most of the boundary between Delaware and Pennsylvania. It is a combination of different...

Castle that he had won through conquest, as Charles carved out a Twelve-Mile Circle around New Castle. Penn, who desired ocean access for his colony,...

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...

community Twelve Mile Circle, part of the Pennsylvania–Delaware boundary Twelve Mile Township in Williams County, North Dakota, USA Twelve Mile Lake Township...

border turns roughly north from the midpoint of the line towards the Twelve-Mile Circle, which forms much of the remainder of the Delaware land border. In...

boundary is often referred to as the Twelve-Mile Circle. Although the Twelve-Mile Circle is often claimed to be the only territorial boundary in the U.S. that...

II and William Penn believed the 40th parallel would intersect the Twelve-Mile Circle around New Castle, Delaware, when in fact it falls north of the original...

territory. Within the Twelve-Mile Circle, Delaware's border extends to the low-water mark across the river. Outside of the Circle, the Delaware – New Jersey...

The New Castle Court House Museum is the center of a circle with a 12-mile radius that defines most of the border between the states of Delaware and Pennsylvania...

the Twelve-Mile Circle. A key subsidiary issue was that Philadelphia was located south of the 40th parallel. The discovery that the Twelve Mile Circle did...

island is from New Jersey. This exclave was created as a result of the Twelve-Mile Circle, which was part of the resolution of the colonial-era Penn-Calvert...

colonial land grant for the city of New Castle, Delaware (called The Twelve-Mile Circle), there is a small amount of Delaware territory in contiguous New...

Publishing. p. 58. ISBN 978-0-7385-3547-0. Shortest International Bridge, Twelve Mile Circle, retrieved 2011-10-15 "ONTERM GeoNames Index: Zachary Islands — Zigzag...

house is the center of the "Twelve-Mile Circle" that defines much of the border between Delaware and Pennsylvania. The circle also forms a small portion...

Marked West" site, Mason–Dixon line, Tangent Line, The Arc, and The Twelve-Mile Circle. It was added to the National Register of Historic Places in 1975...

The Twelve Apostles (grid reference NX9470079400) is a large stone circle located between the villages of Holywood and Newbridge, near Dumfries, Scotland...

boundaries of the state are the Mason–Dixon line (39°43' N) to the south, Twelve-Mile Circle on the Pennsylvania-Delaware border, the Delaware River to the east...

Delaware's northern border by The Twelve-Mile Circle in New Castle, Delaware, extending across the Delaware River. If the circle were to be extended fully, it...

of the 40th parallel but mistakenly assumed it would intersect the Twelve Mile Circle, which it does not. Pennsylvania's border was thus unclear and the...

between Pennsylvania and Delaware is formed by an arc known as the Twelve-Mile Circle laid out in the seventeenth century to clearly delineate the area...

in New Castle, Delaware. This 60 acre property is the center of a twelve-mile circle that form the arc of the border between Delaware and Pennsylvania...

two-digit interstate highway in Delaware, and it only passes through the Twelve-Mile Circle, the northernmost part of the state. Entering southeastern Pennsylvania...

 I09. Retrieved October 3, 2007. "Shortest International Bridge". Twelve Mile Circle. October 11, 2011. Retrieved October 15, 2011. Chan, Elise D. (2007)...

Indiana–Michigan–Ohio tripoint marker Colorado–Kansas–Oklahoma tripoint marker (8 Mile Corner) Kansas-Missouri-Oklahoma tripoint marker Four Corners Monument –...

border with Delaware was based on a Transpeninsular Line and the Twelve-Mile Circle around New Castle. Most of the English colonists arrived in Maryland...

October 25, 2015. "Highest Elevation Town in the United States". Twelve Mile Circle. August 2012. Retrieved October 23, 2019. "Turquoise Lake, CO". Recreation...

the east by Concord Township. The southern border is part of the Twelve-Mile Circle border between Delaware and Pennsylvania. Brandywine Creek forms the...

extending north to just beyond its tangential intersection with the Twelve-Mile Circle which forms Delaware's border with Pennsylvania. The border between...

waters shoreward from lines drawn tangentially to, and between, twelve-mile circles drawn around their offshore islands. Such a declaration represented...

port of Philadelphia. The fort is now part of Fort Mott State Park. Twelve-Mile Circle Supawna Meadows National Wildlife Refuge "Finns Point". Geographic...