Image of Saturn's largest moon, Titan, obtained by Cassini's radar instrument during a near-polar flyby on Feb. 22, 2007 is part of a large panoramic swath. This particular section features the moon's lakes, one of which is larger than any lake on Earth and could be legitimately called a sea. Some of these lakes are partly filled with dark material thought to be liquid hydrocarbons. This final section of the swath, which is closest to the pole, contains by far the largest lakes observed by Cassini's radar to date. Part of the first of these was seen during a previous flyby and is fed by a long river - over 120 miles in length - running through what appears to be a flood plain. The lake's bright, jutting shoreline indicates that old, eroded landforms may have been flooded. The end of the next lake was also observed before appearing to be, in both form and scale, similar to Lake Powell. At the end of the swath, we see the largest lake observed yet - at least 39,000 square miles, which is greater in extent than Lake Superior, and covers a greater fraction of Titan than the largest terrestrial inland sea, the Black Sea.