Hatchell Ground. This ground lies SE. by E 3/4 E. 9½ miles from the western head of Isle au Haute. Marks are eastern Mount Desert Hill in the Middle Saddle of Long island, and Little Spoon Island in the great or center Saddle of Isle au Haute.
Blue Hill Ground. This ground lies approximately E: by S. ¾ S from the western head of Isle au Haute, distant 7 miles. The bottom consists of gravel and pebbles. Marks: Brimstone Island out by the western head of Isle au Haute and Blue Hill on the west side of Marshall Island. These marks lead to a depth of 25 fathoms on the northeast part of the ground, deepening southwest to 40 fathoms in 1 mile from the shoaler part, which is about ½ mile wide, part of the ground, deepening southwest to 40 fathoms in 1 mile from the shoaler part, which is about ½ mile wide. This is a good ground for cod in the spring and fall but is best for haddock during the entire winter. Hand lines and trawl are used.
Inner Horse Reef. This reef lies SE. ¾ E 1½ miles from the eastern ear of isle au Haute. There is a shoal here of 25 fathoms about 1/8 mile in diameter. From this the water gradually deepens to NE. for ½ mile, where it drops off into the mud. Depths on this northeast portion are about 35 fathoms. The bottom is of pebbles and gravel. In spring and fall this is a good cod ground. Hake are found close to the edge in summer. Fishing is by small craft, generally, using trawl and handline. It is a good lobster ground. Marks: Bring Blue Hill Mountain in the saddle of White Horse; Brimstone showing between Western Ear and Isle au Haute.
Outer Horse Reef. This is a short distance SW. from the Inner Reef, with only a narrow gully between. The small shoal falls off rapidly on all sides. It has a depths of 30 fathoms. Over a space 1/4 mile in diameter the bottom is gravelly. Seasons and species are as on Inner Horse Reef.
Hake Ground. North of Monhegan island lies a patch called the Hake Ground or Mud Channel, the first name because of the abundance of hake taken here during June, July, and August. It extends from just outside White Head to abreast of Monhegan Island on the northern side. The depths vary from 20 to 45 fathoms, and the ground is still considered one of the best hake grounds alongshore. It is fished by small boats and vessels when the dogfish are on the outer grounds. This is a good haddock ground in December and January, as well as a good lobster ground.