Fossae in The Cebrenia Quadrangle
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Galaxias Fossae Trough, as seen by HiRISE. Image in the Cebrenia quadrangle.
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Hephaestus Fossae Two Views, as seen by HiRISE. Picture on right lies to the top (north) of other picture. Fossa (geology) often form by material moving into an underground void. Image located in Cebrenia quadrangle.
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