From NASA's Planetary Photojournal
This Mars digital-image mosaic has been merged with color of the MC-1 quadrangle, Mare Boreum region of Mars. The central part is covered by a residual ice cap that is cut by spiral-patterned troughs exposing layered terrain. The cap is surrounded by broad flat plains and large dune fields. Latitude range 65 to 90, longitude range -180 to 180.
Image Title: Mare Boreum Region of Mars
Catalog #: PIA00161
Target Name: Mars
Spacecraft: Viking
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Last Modified On: Sunday, December 17, 2000