Share

Printer-friendlySend by email

First State Geology Newsletter Signup

First State Geology has been the newsletter of DGS for over 25 years.

Click here to signup!

IS6 Delaware's State Boundaries

Hardcopy Print Available!
Delaware's State Boundaries
Publication Type:
Information Series
Publication Date:
Jun 1989
Authors:
Schenck, W.S.
Abstract:

One hundred seventy-nine monuments help to mark Delaware's boundaries with Maryland, Pennsylvania, and New Jersey. Although there are only four major boundaries, there are seven boundary lines that make up the confines of the State. They are the east-west boundary, or Transpeninsular Line; the north-south boundary, or the Tangent Line, Arc, and North lines;; the Delaware-Pennsylvania boundary, including the Top of the Wedge Line and the 12-mile Circle; and the Delaware-New Jersey boundary including the 1934 Mean Low Water Line and the Delaware Bay Line. Only the Transpeninsular, Tangent, Arc, North, 12-mile Circle, and 1934 Mean Low Water lines are monumented. The Delaware Bay Line is defined by the navigational
channel. The boundaries described here evolved through long, complex histories (see references). They are based largely on adjudication in England of conflicting claims by the Penns and the Calverts for the Pennsylvania and Maryland colonies.

Downloads and Data


Coverage Area
Use Constraints

Please give proper credit to the Delaware Geological Survey.

Schenck, W.S., 1989, elaware's State Boundaries: Delaware Geological Survey Information Series 6

Contact Info

Delaware Geological Survey
Phone: (302)-831-2833
Fax: (302)-831-3579
delgeosurvey@udel.edu

University of Delaware
Delaware Geological Survey Building
Newark, DE 19716
Mon - Fri; 8:00am to 4:30pm