The Parana valles and basin system is a large (ca. 150 km) basin that used to host a large lake. The lake overflows and resulted in a large outlet canyon, seen flowing to the north (up to the top of the image).
Location on Mars: 23.1°S 10.2°W (https://en.wikipedia.org/wiki/Paran%C3%A1_Valles).
Valley networks and outflow channel are shown mapped on the surface (blue). To see this without mapping, see https://skfb.ly/o8HKH (see also our article: https://www.nature.com/articles/s41586-021-03860-1, where these features were published; Goudge et al., 2021, Nature). The Parana lake (before oveflow) is also shown in a light green-blue shaded region.