Huo Hsing Vallis is an ancient river valley in the Syrtis Major quadrangle of Mars at 30.5° north latitude and 293.4° west longitude.

[1] Some crater floors in the Syrtis Major area show elongated ridges in a lattice-like pattern.

The water often carries minerals that serve to cement rock materials thus making them harder.

[2] This discovery may be of great importance for future colonization of Mars because these types of faults and breccia dikes on earth are associated with key mineral resources.

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