Go Directly to text list of watershed groups.

Saint John River (upper) Saint John River (upper) Saint John River (lower) and Harbor Saint John River (upper) Saint John River (lower) and Harbor Saint John River (upper) Penobscot River - Penobscot Bay Saint John River (lower) and Harbor Saint John River (upper) Penobscot River - Penobscot Bay Saint John River (lower) and Harbor Saint John River (upper) Saint John River (lower) and Harbor Chignecto - Shepody - Cumberland watershed Saint John River (lower) and Harbor Chignecto - Shepody - Cumberland watershed Penobscot River - Penobscot Bay Saint John River (lower) and Harbor Penobscot River - Penobscot Bay Saint John River (lower) and Harbor Penobscot River - Penobscot Bay St. Croix River - Passamaquoddy Bay Penobscot River - Penobscot Bay Saint John River (lower) and Harbor St. Croix River - Passamaquoddy Bay Penobscot River - Penobscot Bay Saint John River (lower) and Harbor St. Croix River - Passamaquoddy Bay Saint John River (lower) and Harbor Androscoggin and Kennebec Rivers - Merrymeeting Bay Penobscot River - Penobscot Bay Androscoggin and Kennebec Rivers - Merrymeeting Bay Penobscot River - Penobscot Bay
Saint John River (upper)
Saint John River (upper) Saint John River (lower) and Harbor Saint John River (lower) and Harbor
Penobscot River - Penobscot Bay Saint John River (lower) and Harbor Saint John River (lower) and Harbor
Saint John River (lower) and Harbor Chignecto - Shepody - Cumberland watershed Chignecto - Shepody - Cumberland watershed
Penobscot River - Penobscot Bay Saint John River (lower) and Harbor Saint John River (lower) and Harbor
Penobscot River - Penobscot Bay St. Croix River - Passamaquoddy Bay Saint John River (lower) and Harbor Saint John River (lower) and Harbor Saint John River (lower) and Harbor
Androscoggin and Kennebec Rivers - Merrymeeting Bay Penobscot River - Penobscot Bay Penobscot River - Penobscot Bay
Chignecto - Shepody - Cumberland watershed Minas Basin Minas Basin
Saint John River (lower) and Harbor Coastal Bay of Fundy (outside of estuarine influence) Coastal Bay of Fundy (outside of estuarine influence) Coastal Bay of Fundy (outside of estuarine influence) Coastal Bay of Fundy (outside of estuarine influence) Coastal Bay of Fundy (outside of estuarine influence) Minas Basin
St. Croix River - Passamaquoddy Bay St. Croix River - Passamaquoddy Bay Coastal Bay of Fundy (outside of estuarine influence) Coastal Bay of Fundy (outside of estuarine influence) Coastal Bay of Fundy (outside of estuarine influence)
Coastal Bay of Fundy (outside of estuarine influence) Coastal Bay of Fundy (outside of estuarine influence) Minas Basin
Cobscook Bay - Machias Bay St. Croix River - Passamaquoddy Bay Coastal Bay of Fundy (outside of estuarine influence) Coastal Bay of Fundy (outside of estuarine influence)
Coastal Bay of Fundy (outside of estuarine influence) Annapolis Basin Coastal Bay of Fundy (outside of estuarine influence) Coastal Bay of Fundy (outside of estuarine influence)
Blue Hill Bay - Frenchman's Bay - Union River - Taunton River St. Croix River - Passamaquoddy Bay St. Croix River - Passamaquoddy Bay St. Croix River - Passamaquoddy Bay Coastal Bay of Fundy (outside of estuarine influence) Coastal Bay of Fundy (outside of estuarine influence)
Penobscot River - Penobscot Bay Cobscook Bay - Machias Bay Cobscook Bay - Machias Bay Coastal Bay of Fundy (outside of estuarine influence) Coastal Bay of Fundy (outside of estuarine influence) Coastal Bay of Fundy (outside of estuarine influence)
Coastal Bay of Fundy (outside of estuarine influence) Coastal Bay of Fundy (outside of estuarine influence)
Coastal Bay of Fundy (outside of estuarine influence) St. Mary's Bay Coastal Bay of Fundy (outside of estuarine influence) Coastal Bay of Fundy (outside of estuarine influence)
Penobscot River - Penobscot Bay Blue Hill Bay - Frenchman's Bay - Union River - Taunton River Coastal Bay of Fundy (outside of estuarine influence) Coastal Bay of Fundy (outside of estuarine influence)
Coastal Bay of Fundy (outside of estuarine influence) Coastal Bay of Fundy (outside of estuarine influence)
Coastal Bay of Fundy (outside of estuarine influence) Lobster Bay - Clyde River - Tusket River Coastal Bay of Fundy (outside of estuarine influence)
Androscoggin and Kennebec Rivers - Merrymeeting Bay Casco Bay Penobscot River - Penobscot Bay Penobscot River - Penobscot Bay
Merrimac River - Saco River Androscoggin and Kennebec Rivers - Merrymeeting Bay Androscoggin and Kennebec Rivers - Merrymeeting Bay Androscoggin and Kennebec Rivers - Merrymeeting Bay
Penobscot River - Penobscot Bay Coastal Bay of Fundy (outside of estuarine influence)
Androscoggin and Kennebec Rivers - Merrymeeting Bay Coastal Maine (outside of estuarine influence) Coastal Maine (outside of estuarine influence) Coastal Maine (outside of estuarine influence) Coastal Maine (outside of estuarine influence) Coastal Maine (outside of estuarine influence) Coastal Maine (outside of estuarine influence) Coastal Maine (outside of estuarine influence) Coastal Maine (outside of estuarine influence) Coastal Bay of Fundy (outside of estuarine influence)
Coastal Maine (outside of estuarine influence) Coastal Maine (outside of estuarine influence) Coastal Maine (outside of estuarine influence) Coastal Maine (outside of estuarine influence) Coastal Bay of Fundy (outside of estuarine influence) Coastal Bay of Fundy (outside of estuarine influence)
Merrimac River - Saco River Casco Bay Coastal Maine (outside of estuarine influence) Coastal Maine (outside of estuarine influence) Coastal Maine (outside of estuarine influence)
Merrimac River - Saco River Piscataqua River - Great Bay Casco Bay Coastal Maine (outside of estuarine influence) Coastal Maine (outside of estuarine influence) Coastal Maine (outside of estuarine influence)
Merrimac River - Saco River Coastal Maine (outside of estuarine influence) Coastal Maine (outside of estuarine influence) Coastal Maine (outside of estuarine influence)
Coastal Bay of Fundy (outside of estuarine influence)
Coastal Maine (outside of estuarine influence)
Merrimac River - Saco River Coastal Maine (outside of estuarine influence) Coastal Maine (outside of estuarine influence)
Merrimac River - Saco River Charles River - Boston Harbor - Massachusetts Bay Coastal Maine (outside of estuarine influence) Coastal Maine (outside of estuarine influence) Coastal Maine (outside of estuarine influence)
Charles River - Boston Harbor - Massachusetts Bay Coastal Maine (outside of estuarine influence)
Charles River - Boston Harbor - Massachusetts Bay