Hello.
Find here a wide panorama across the border which separates Tranquillitatis (containing Cauchy rilles) and Fecunditatis (Taruntius crater) maria.

I couldn’t find a name for the tiny rille you can see to the right of the evident rima Secchi and running almost parallel to rima Messier here visible on the very bottom side of the image.

Does anyone know it?
Thank you in advance for your answers.
More to follow.