Chemquasabamticook Lake (or Ross Lake) is the source of Chemquasabamticook Stream in the North Maine Woods. The lake is in Maine townships 9 and 10 of range 15, and township 9 of range 14. Tributaries include Sweeney Brook, Boucher Brook, Gannet Brook, Fool Brook, and Ross Inlet. Chemquasabamticook Stream flows 22 miles (35 km) from a disused dam at the north end of the lake to reach Long Lake on the Allagash River.[2] Chemquasabamticook Lake has a self-sustaining native squaretail population, and rainbow smelt have been introduced to encourage more rapid growth of the native togue.[4]

Chemquasabamticook Lake
Chemquasabamticook Lake Show map of Maine Chemquasabamticook Lake Show map of the United States
Location	Piscataquis County, Maine
Coordinates	46°30′N 69°37′W[1]
Primary outflows	Chemquasabamticook Stream
Basin countries	United States
Max. length	4.8 mi (7.7 km)[2]
Max. width	1.5 mi (2.4 km)[2]
Surface area	2,925 acres (1,184 ha)[3]
Max. depth	105 feet (32 m)[4]
Water volume	99,975 acre⋅ft (123,317,000 m3)[3]
Surface elevation	1,201 ft (366 m)[1]

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