
author
1843–1918
A pioneering American geologist, he helped shape the modern study of landforms through careful fieldwork in the American West. His work on erosion, lakes, mountain building, and even impact craters left a lasting mark on earth science.

by John Wesley Powell, Willis Drummond, Clarence E. (Clarence Edward) Dutton, Grove Karl Gilbert, A. H. (Almon Harris) Thompson

by Grove Karl Gilbert
Born in Rochester, New York, in 1843, Grove Karl Gilbert became one of the most influential geologists of his era. He is often credited as one of the founders of modern geomorphology, the study of how landscapes take shape and change over time.
Gilbert worked on major geological surveys of the American West and later with the United States Geological Survey. He became especially known for his studies of the Henry Mountains in Utah, Lake Bonneville, erosion, sediment transport, and the balance between geological forces that build and wear down landscapes.
His scientific curiosity ranged widely: he also investigated earthquakes, lunar craters, and Arizona's Meteor Crater. Gilbert died in 1918, but his clear, observant approach to field science continues to influence geologists today.