Jezero is a crater on Mars located at 18.855°N 77.519°E in the Syrtis Major quadrangle. The diameter of the crater is about 49.0 km. Thought to have once been flooded with water, the crater contains a fan-delta deposit rich in clays. The lake in the crater was present when valley networks were forming on Mars.

Planet: Mars

Diameter: 49.0 km (30.4 mi)