"Grand Kessel River Valley"@en . . . "The Grand Kessel River Valley was a rock formation on Kessel. Trioculus once disciplined a rebellious settlement in the Valley by firing a C-136 \"Grandfather Gun\" into a river dam. The entire settlement flooded, drowning the rebels."@en . . . "The Grand Kessel River Valley was a rock formation on Kessel. Trioculus once disciplined a rebellious settlement in the Valley by firing a C-136 \"Grandfather Gun\" into a river dam. The entire settlement flooded, drowning the rebels."@en .