Olympica Fossae

Olympica Fossae is a complex channel located on the volcanic plains between Alba Mons and Olympus Mons. The sinuosity of some of the channel sections in the the image indicates that liquid flow played a part creating these features. In this case the location and other surface features point to lava rather than water as the liquid. The interconnecting linear sections of depressions are most likely formed by the collapse of the surface into voids left by lava tubes.