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Keywords from Image Description:
PIAMCTharsisRegion. en PIA MC Tharsis Region jpl nasa gov Mars digitalimage mosaic merged with color of the MC quadrangle Tharsis region of Mars Three of the four largest shield volcanoes on MarsOlympus Ascraeus and Pavonis Monteslie within the Tharsis quadrangle together with several smaller shields The northcentral part is marked