HiRISE 3D: Possible Spatter Cones East of Arsia Mons
A “spatter cone” is a miniature volcanic cone on a crater floor or lava flow from which lava is ejected in drops or gobs.
https://www.uahirise.org/anaglyph/ESP_082873_1715_ESP_083440_1715_RED
NASA/JPL-Caltech/University of Arizona