Geological Chronicle
Crocco sits on the far side of the Moon northeast of the massive walled plain Planck and northwest of Poincaré. Measuring 67.5 kilometers in diameter, the nearly circular formation retains a well-defined rim despite minor impact erosion, with a small craterlet notching the north-northeast wall and the crater Koch lying within one diameter to the north.
The rim structure is interrupted by neighboring satellites, with the eastern wall partly overlain by Crocco G and the crater Crocco R positioned immediately west-southwest. Inside, the northwestern floor forms an even sheet of solidified lava, where morphology suggests at least two separate volcanic flow episodes over time.
The southeastern floor shows a more complex topography, marked by an older impact crater almost completely submerged by the lava flow. That inundated rim leaves an open bay in its northern sector, linked by a low ridge extending from its western crest toward Crocco's southwestern inner wall.
In 1970, the International Astronomical Union formally adopted the name Crocco in honor of Gaetano Arturo Crocco, an Italian scientist and aeronautics pioneer.