|Location||Piscataquis County, Maine|
|Primary outflows||Chemquasabamticook Stream|
|Basin countries||United States|
|Max. length||4.8 mi (7.7 km)|
|Max. width||1.5 mi (2.4 km)|
|Surface area||2,925 acres (1,184 ha)|
|Max. depth||105 feet (32 m)|
|Water volume||99,975 acre⋅ft (123,317,000 m3)|
|Surface elevation||1,201 ft (366 m)|
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. Chemquasabamticook Lake has a self-sustaining native squaretail population, and rainbow smelt have been introduced to encourage more rapid growth of the native togue.
- U.S. Geological Survey Geographic Names Information System: Chemquasabamticook Lake
- The Maine Atlas and Gazetteer (Thirteenth ed.). Freeport, Maine: DeLorme Mapping Company. 1988. pp. 55&61. ISBN 0-89933-035-5.
- Maine Depts. of Environmental Protection and Inland Fisheries & Wildlife (2005-08-04). "Maine Lakes: Morphometry and Geographic Information". Senator George J. Mitchell Center for Environmental and Watershed Research, The University of Maine. Archived from the original on 2006-09-03. Retrieved 31 July 2008.
- "Ross Lake" (PDF). Maine Department of Inland Fisheries and Game. State of Maine. Retrieved 9 May 2016.