 A dam in Maine township 10, range 12, has raised the level of Churchill Lake from the adjoining range 12 township 9 into the north end of Eagle Lake in adjoining range 13 of township 9.The dam controls elevation of Eagle Lake by releases to the Allagash River tributary of the Saint John River.Personnel at Churchill Depot control dam releases to sustain Allagash River summer flows favorable for canoe passage of the Allagash Wilderness Waterway.