Tracadie; The Acre. This bears NE. by E. from Boon island, distant 5 miles. It is 1 mile in diameter and has a depth of 50 fathoms over a bottom of rocks and gravel. It is a good haddock ground all the year; a cod ground in August, when these fish are "jigged"; a hake ground from April to October; and a cusk ground the year around.
Old Southeast. Extends from the shore soundings at White Island (one of the isles of Shoals) 7 or 8 miles SE. nearly to Jeffreys in a long, rather narrow point. It is a piece of broken ground with a hard bottom, having depths running from 20 fathoms on the inner parts to 50 fathoms farther out and deepening suddenly on all sides to the mud about it. Fish and their seasons are as on Blue Clay, haddock being most abundant on the eastern edge from January through March. This is growing steadily in importance as a gill-netting ground.
The Prairie. This name has been given to a flat ground of generally level bottom, lying E. by N. from Boon Island 7 miles. It has depths of from 41 to 50 fathoms over mud and gravel, rising out of 60 fathoms over the muddy ground about it. It extends in a generally ENE. by WSW. direction, 2 miles long by 1 mile wide. It is a "blistery" ground, the presence of these growths on a rocky or gravelly bottom usually meaning good fishing. This is principally a haddock ground, with the best season from mid March to the 1st of May. This is a small-boat and gill-netting ground. It is also visited to a considerable extent by the larger vessels of the Portland fleet in the severer weather of the winter and early spring because of its accessibility.
Blue Clay Ground. also called Southeast Ground. This bears S. by E. from Boon Island. from which it is distant 8 miles. The form of the ground is roughly square and is from 4 to S miles across. Depths here range from 30 on the shoalest parts to 60 fathoms, the bottom being of tough blue clay. The water deepens suddenly on the muddy ground all about it. It is one of the best winter haddock grounds in this vicinity, particularly the eastern edge, which is much resorted to by haddock trawlers from January through March, when this species is most abundant here. It is a good winter cod ground, also.
A long, narrow strip of hard bottom, separated from the Blue Clay by a narrow mud gully of somewhat greater depth, is called the Prong. Depths here run from 30 fathoms on the inner parts to 70 fathoms offshore. This piece furnishes a very suitable bottom for operating gill nets and is much visited by this type of craft. The Prong lies S. by E. from Cape Porpoise 17 miles. Marks: Bring Acre Hill in line, Notch of Agamenticus at the distance from Cape Porpoise just given. From the Isle of Shoals the Prong is distant 10 miles SE. by E.
Duck Island Ridges. These are two narrow rocky ridges running from Duck Island (one of the Isles of Shoals) toward Boon Island. reaching within I mile of the latter. Depths are from 25 to 30 fathoms. These are good cusk and haddock grounds in the winter and spring, the cusk remaining on the ground also from April to October. This is a cod ground in winter and spring, the fish being taken on the "bobber trawl." which is a trawl of the ordinary type buoyed to "set" 1 fathom or so from the bottom. It is a hand-line ground in summer for cod and pollock. Both small boats and vessels, line trawlers, and gillnetters operate here. It is also a lobster ground.
Boon Island Rock Ground. This ground begins ½ mile eastward of Boon Island Ledge and runs in an ESE. direction 2 or 3 miles from the ledge. It has a bottom of sharp rocks and clay and depths from 40 to 60 fathoms. It is an excellent fishing ground for cod, haddock, and cusk and is one of the best winter fishing grounds for haddock in this vicinity. It is fished mainly by line trawlers but is not much used as yet by gill-netters, being a somewhat difficult piece of bottom for them.
Tower Ground. This is a winter haddock ground having depths averaging 50 fathoms over a ridgy and broken bottom. This is about 3 miles long by 2 miles wide and bears about SE. from Boon Island. Marks: Bring Boon Island Light on the Peak of Mount Agamenticus, running off until the top of the tower and the top of the mountain are level, perhaps 6 miles from Boon Island.
Ten Acre or Nipper Ground. Extends S. ½ E. from Boon Island 6 miles and E. from Isles of Shoals 7 miles. This shoal is about 1/4 mile wide and has 18 to 20 fathoms over clay and mud, the ground sloping gradually to 50 or 60 fathoms near the edge. This is a good fishing ground for cod, haddock, cusk, and pollock in the spring, while on the muddy edges hake are abundant in September. Marks: White Hills over Boon Island on center (these cross bearings meet near the center of the ground); also, the Black Hill W. of Portsmouth over the Star Island of the Isles of Shoals leads to the small rocky shoal that is in the middle of the ground.
Ipswich Bay. This extends from the north side of Cape Ann about to Portsmouth and is resorted to in winter by large schools of cod coming here to spawn. Shore soundings deepen here gradually from the land, reaching 35 to 40 fathoms at 6 or 7 miles out. Within this limit the bottom is mainly sandy, though rocky patches are numerous between Newburyport and Cape Ann. Beyond 40 fathoms the bottom is mainly mud.