8. Volcanoes on Mars created a giant labyrinth.
There’s an area on Mars between the Tharsis upland and Valles Marineris known as the Noctis Labyrinthus. A maze-like area with steep-walled valleys marks this region. It’s believed that volcanic activity contributed to landslides and disturbances, leading to rougher, pit-like formations on the surface.
The depth of the craters is determined by how far below the surface lava is present. Experts say that a complex lava tube network resides under this area, causing the labyrinth appearance. This vast region stretches more than 745 miles, roughly the same length as the Rhine River as it extends from the Alps down to the North Sea. In some areas, wind draws dust into the plateaus of the Noctis Labyrinthus.