500 BULLETIN OF THE BUREAU OF FISHERIES. 



of a mile; and is approximately one-half of a mile wide at the eastern end. The loca- 

 tion is such as to make two comparatively narrow passageways from the southern to 

 the northern portions of the lake — one by the western shore toward Thurstons Cove, 

 thence about one-third of a mile across from the lower western angle of the island and 

 carrying from 6 to 8 feet of water; the other about the same distance from Tidswells 

 Point, with lo to 12 feet of water. ' 



Coves.— The principal coves are Sturtevants, Sunday, Rapid River, B Brook, and 

 Tylers from north southward on the east shore, and Sargents, Thurstons, and Block 

 Island from south northward on the west side. Sturtevants Cove is a broad cove a 

 short distance northward of the entrance to Sunday Cove. Its northwestern shore is 

 rather low and the southeastern comparatively high rising ground. Not far from the 

 high shore the cove carried a depth from 1 7 to 7 feet toward the mouth of Sturtevant 

 Brook. 



Sunday Cove is situated at the northeast side of the previously-mentioned large 

 bay. From the entrance to head it is i mile and has a greatest width of about one- 

 third of a mile, but the entrance is only one-tenth of a mile across. It is near the head 

 of this cove that the steamboat landing for the Rapid River carry to Middle Dam is 

 located. Something less than a mile south of the entrance to Sunday Cove is the cove 

 at the mouth of Rapid River. About i yi miles southward of Pine Point is the entrance 

 to B Brook Cove, which is an indentation nearly i mile long and about one-third of a 

 mile wide. The southern side rises more abruptly than the northern side and is formed 

 by the northern shore of a broad cape the southern projection of which is Tylers Point. 

 Immediately south of Tylers Point is a broadly triangular, comparatively deep-water 

 cove called Tylers Cove. It carries 14 feet of water well up into the cove, the shores of 

 which are fairly steep, especially on the north side. 



Sargents Cove is a shallow-water indentation at the west end of the east and west 

 southern expansion of the lake. It is triangular in shape and has only 4 or 5 feet of 

 water in the deepest part. From the point bounding the northern side of the cove the 

 shore of the lake runs very regularly northwestward for about 2 miles to the entrance 

 to Thurstons Cove, which is irregularly triangular in shape, nearly a mile long, with 

 water shoaling from 6 feet at its entrance to i foot at the head. Block Island Cove is 

 small, shallow, and of not much consequence. It is situated about i mile northwest- 

 ward of Metallak Island. 



Situated between a low marshy point at the southern side of the present entrance 

 of the Androscoggin River and the comparatively steep southern shore at Molls Rock, 

 is a small cove that is, in some portions, 10 feet deep. The head of the cove is only a 

 few yards from a bend in the Androscoggin River. A boat or canoe portage here is 

 known at Molls Carry. 



On the north side of the river entrance is another long marshy neck of land only a 

 few yards across, by which over a mile of distance is saved by using Richardson Carry 

 in boating or canoeing from the upper end of the lake. This region about the entrance 

 of the river south and westward of Moose Point consists of shallow water, lagoons, 

 and marsh. 



Tributaries. — The largest and most important affluents of Umbagog Lake are 

 Rapid River, the outlet of the Rangeley Lakes above, and Cambridge River. 



