Geological Chronicle
Littrow is an impact crater on the eastern edge of Mare Serenitatis in the northeastern part of the Moon's near side. Measuring 28.52 kilometers across, the feature is situated north of Vitruvius and southwest of the prominent crater Römer. The crater is named after Bohemian astronomer Joseph Johann von Littrow.
The rim of Littrow is heavily worn and eroded, particularly along its southern wall. Volcanic activity flooded the interior with lava, leaving a smooth, featureless surface with no central rise.
Just to the northwest of Littrow lies Rimae Littrow, a system of rilles spanning up to 115 km. To the south-southwest is the Taurus–Littrow valley, notable as the landing site of Apollo 17, while nearby sections of the rille network were once evaluated as potential landing sites for earlier Apollo missions.