The Martian Volcano known as Apollinaris Patera is found along the border between the ancient Martian Highlands and the younger Northern Lowlands.

It is characterized by a large Caldera (~ 60 Km diameter), a Basal Scarp, and a very large Fan that emanates from the Caldera and covers most of the Southern Flanks. Like other Martian Volcanoes Apollinaris Patera appears to have undergone episodes of both explosive and effusive eruptions.

The color information that you find in this mosaic of Apollinaris Patera comes from a series of color frames acquired by the NASA - Viking 1 Orbiter during orbit 468S (~ 350 m/pixel). To sharpen details of morphology, the color mosaic was afterwards merged with a higher resolution (~ 180 mt/pixel) series of images acquired during orbit 088A. However, after the NASA image and color processing, the whole mosaic has been additionally processed and then re-colorized in Absolute Natural Colors by the Lunexit Team.

For more information on Apollinaris Patera you can see: Robinson et al., Chronology, Eruption Duration, and Atmospheric Contribution of the Martian Volcano Apollinaris Patera, Icarus, 104, pp. 301-323, 1993 and Scott, D.H., J.M. Dohm, D.J. Applebee, Geologic Map of Science Study Area 8, Apollinaris Patera Region of Mars (Special MTM-10186 Quadrangle), USGS Misc. Investigations Series, MAP-I-2351, 1993.