Grant, John A., Wilson, Sharon A., Fortezzo, C. M., and Clark, D. A. 2009. [Map] "
Geologic map of MTM -0012 and -25012 quadrangles, Margaritifer Terra region of MarsS, Scientific Investigations Map 3041, scale 1:1,000,000."
Washington, DC: United States Geological Survey (USGS).