Geologic maps are used to locate natural resources, such as water or oil, or the best place to hunt for fossils, but they can also be eye catching works of art. Sharon Purdy A low-lying topographic ...

Eugene Shoemaker with some of the first geologic maps of the Moon, Flagstaff AZ, mid-1960's Many people are surprised when they learn that well before the first landing of Apollo in 1969, we already ...