New Hampshire v. Maine
434 U.S. 1 (1976)

Annotate this Case

U.S. Supreme Court

New Hampshire v. Maine, 434 U.S. 1 (1977)

New Hampshire v. Maine

No. 64, Orig.

Decided June 14, 1976

Decree entered October 3, 1977

434 U.S. 1

Joint motion for the entry of a final decree is granted, and a final decree is entered.

Opinion reported: 426 U. S. 426 U.S. 363.


The joint motion for entry of a final decree is granted.


1. The Report of the Special Master is hereby approved, and the motion for entry of judgment by consent of plaintiff and defendant is granted.

2. This judgment determines the lateral marine boundary line between New Hampshire and Maine from the inner Portsmouth Harbor to the breakwater at the end of the inner Gosport Harbor in the Isles of Shoals.

3. The Order of the King in Council of April 9, 1740, in pertinent part, provided:

"And as to the Northern Boundary between the said Provinces, the Court Resolve and Determine, That the Dividing Line shall pass up thru the Mouth of Piscataqua

Page 434 U. S. 2

Harbour and up the Middle of the River into the River of Newichwannock (part of which is now called Salmon Falls) and thru the Middle of the same to the furthest Head thereof and from thence North two Degrees Westerly until One Hundred and Twenty Miles be finished from the Mouth of Piscataqua Harbour aforesaid or until it meets with His Majesty's other Governments And That the Dividing Line shall part the Isles of Shoals and run thru the Middle of the Harbour between the Islands to the Sea on the Southerly Side; and that the Southwesterly part of the said Islands shall lye in and be accounted part of the Province of New Hampshire And that the North Easterly part thereof shall lye in, and be accounted part of the Province of the Massachussets Bay and be held and enjoyed by the said Provinces respectively in the same manner as they now do and have heretofore held and enjoyed the same. . . ."

4. The terms "Middle of the River" and "Middle of the Harbour," as used in the above-quoted Order, mean the middle of the main channel of navigation of the Piscataqua River and the middle of the main channel of navigation of Gosport Harbor.

5. The middle of the main channel of navigation of the Piscataqua River, commencing in the vicinity of Fort Point, New Hampshire, and Fishing Island, Maine, proceeding southward, is as indicated by the range lights located in the vicinity of Pepperrell Cove, Kittery Point, Maine, and it follows the range line as marked on the Coast and Geodetic Survey Chart 211, 8th Edition, Dec. 1, 1973.

6. The main channel of navigation of the Piscataqua River terminates at a point whose position is latitude 43

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