This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
USGSMarsMapsimfull. Dr Dennis Bogdan Drbogdan converted original PDF image usgs gov pdf to image via GIMP later cropped see crop below with PSP July NOTE RELATED CROP File USGSMarsMapsimcrop ALSO RELATED youtube quZMhSohIEU Video Planet Mars USGS nytimes html By Kenneth Tanaka James Skinner Jr James Dohm Rossman