Collapse Pit-Chain near Tharsis Tholus (Original NASA/MGS/MSSS b/w Frame)

Caption NASA originale:"This MGS-MOC mage shows a portion of a Chain of Collapse Pits on a Lava and Dust-covered Plain, North/West of Tharsis Tholus —one of the many volcanic constructs in the Tharsis Region of Mars.
Pit chains, such as this one, are associated with the collapse of surface materials into subsurface voids formed by faulting and expansion — or extension — of the bedrock".

Location near: 16,4° North Lat. and 92,6° West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Northern Winter