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Photographer: Wikipedia
Caption: The Transpeninsular Line
Additional Description: The center of the Transpeninsular Line across the Delmarva peninsula starting at Fenwick island (at approximately 38°27′ N), shown here in red, determined the location of Mason and Dixon’s tangent line. (shown here in green) which separates Maryland from Delaware (then the lower counties of Pennsylvania) running from the center of the Transpeninsular Line tangent to a circle 12 miles around Newcastle. The question, whether Taylor’s Island is an island in the Chesapeake Bay or part of the mainland of the Delmarva peninsula determined the length of the Transpeninsular Line and hence the location of its center. The decision that Taylor’s Island is part of the mainland lengthened the Transpeninsular Line, moving its center farther from Fenwick Island and moving the tangent line westward thus increasing the area of Delaware at the expense of Maryland.
Submitted: March 14, 2018, by Allen C. Browne of Silver Spring, Maryland.
Database Locator Identification Number: p419207
File Size: 0.111 Megabytes

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