Pit Chain on Arsia Mons (CTX Frame - Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)

Caption NASA:"The Chain of Collapse Pits visible in this image formed by collapse as the giant Shield Volcano, Arsia Mons, was pulled apart. While Magma intruding into the Volcano might have pushed the rocks aside, it is also possible that the collapse is caused by the volcano falling apart underneath its own weight.

Acquisition date: September, 22nd, 2007
M.L.T.: 14:14 (Early Afternoon)
Latitude (centered): 6,5° South
Longitude (East): 240,0°
Spacecraft Altitude: 252,4 Km
Original Image Scale Range: 25,3 cm/pixel (with 1 x 1 binning) so objects ~76 cm across are resolved
Map Projected Scale: 25 cm/pixel and North is up
Map Projection: EQUIRECTANGULAR
Emission Angle: 3,9°
Sun-Mars-Spacecraft (Phase) Angle: 38,1°
S.I.A.: 34°, with the Sun about 56° above the Local Horizon
Solar Longitude: 318,2° (Northern Winter)