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Boundary Waters Between Maine and New Brunswick

Licensing Requirements On Boundary Waters:

Either a Maine or New Brunswick License will be honored while fishing on the main body of the waters listed below, or on boundary river waters, including the main stem of the St. Croix River. Fishing on these waters in any area or cove where jurisdiction can be determined by a straight line drawn between two points of land, or fishing while positioned on shore or tied up to shore requires the appropriate agency license.

Waters Affected By This Section Include:

Aroostook County

  • East Grand Lake, Orient, Weston
  • Glazier Lake, T18 R10 WELS
  • Monument Brook, Amity, Orient
  • North Lake, Orient
  • The Thoroughfare between North Lake and East Grand Lake, Orient
  • St. Francis River, T18 R10 WELS, T19 R11 WELS, Big Twenty Twp.
  • St. John River, from its confluence with the St. Francis River to the easternmost border of the town of Hamlin.

Washington County

  • East Grand Lake, Danforth, Forest City Twp.
  • Grand Falls Flowage, east of a line between red markers on McAllister Point and Abbott’s Point and north to Spednic Falls
  • Mud Lake, Forest City
  • St. Croix River, in its entirety
  • Spednic Lake, Forest City Twp., Forest Twp., T11 R3 NBPP, and Vanceboro
  • Woodland Flowage (St. Croix River Flowage), Baileyville

General Fishing Rules:

General fishing rules listed below apply to New Brunswick boundary waters that do not have special fishing rules. If a water has special rules that differ from the general fishing rules listed below, they will be listed in the Special Fishing Rules sections beginning on either Southern & Eastern Counties or Northern & Western Counties.

Season Dates

  • Lakes and ponds are open to ice fishing from January 1 to March 31.
  • Lakes, ponds, rivers, streams and brooks are open to open water fishing from April 1 to September 30.
  • Rivers, streams and brooks are closed to ice fishing from October 1 to March 31
    (except the St. John River).


  • Ice Fishing: Not more than five (5) lines per person.
  • Open Water Fishing: Not more than two (2) lines per person.

Baitfish Use

See Laws Pertaining to Baitfish Dealers and Use of Baitfish concerning the use of baitfish (live or dead).

Legal Hours

From 2 hours before sunrise to 2 hours after sunset (no night fishing). Legal fishing hours and open season herein does not apply to the taking of smelts from waters, or portions thereof, that are naturally free of ice.


Boundary waters in Washington County (except East Grand and Spednic Lakes) have a maximum length limit of 25 inches (63 cm) on landlocked salmon and brown trout.

Boundary Waters Between Maine and New Brunswick


Daily Bag & Possession Limits

Minimum Length Limit


5 fish

6 inches (15 cm)

Landlocked Salmon

2 fish

14 inches (35 cm)

Togue (Lake Trout)

2 fish

18 inches (45 cm)

Aggregate bag limit on landlocked salmon, trout, and togue: 5 fish, not to include more than 2 landlocked salmon and 2 togue; all 5 may be trout.

Smallmouth Bass

2 fish

10 inches (25 cm)

Only 1 exceeding 14 inches (35 cm)

Largemouth Bass

No bag limit

No length limit

White Perch

25 fish

No length limit


3 fish

No length limit


60 fish

No length limit


10 fish

No length limit


10 fish

No length limit

All other species (except Sea Run Atlantic Salmon): NO DAILY BAG, POSSESSION, OR LENGTH LIMITS

Regulations in red are new this year.

Purple text indicates an important note.

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