The Pemadumcook chain of lakes forms the largest body of water in view as one gazes south from Mount Katahdin. If one takes a landscape picture from that summit, these lakes span the distance from the Piscataquis Mountains in the west to North Twin dam on Elbow Lake in the east. It is the fifth-largest lake system in Maine, exceeded only by Moosehead Lake at , Sebago Lake at , Chesuncook Lake at , and Flagstaff Lake at . The Pemadumcook Chain of Lakes occupy . Individually Mooselookmeguntic Lake is larger than Pemadumcook, but it is not larger than the chain.