Rima Ariadaeus

Rima Ariadaeus as photographed from Apollo 10. The large crater south of the rille is Silberschlag, and the dark patch at the top right is the floor of the crater Boscovich.
Oblique view also from Apollo 10, with Ariadaeus crater in lower left and Rima Ariadaeus extending to the horizon.

Rima Ariadaeus is a linear rille on the lunar surface, situated at coordinates 6°24′N 14°00′E / 6.4°N 14.0°E / 6.4; 14.0. Measuring approximately 5 km (3.1 mi) in width and spanning a length of 300 km (186.4 mi), it stretches between Mare Tranquillitatis and Mare Vaporum.