Angular Slabs with Circular Hole
MGS Image # AB108405
At the southeast floor of west Candor Chasma, these unusual rectilinear blocks appear
artificial to some researchers. Bear in mind "The Arrow" is not the only feature at
Candor suggesting artificial origins. Nearby are the "Hexes" and "Skullface".
The "hole", or black dot, is approximately 70 meters wide.
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Image courtesy of NASA/JPL/MSSS