Data, research and associated interpretations on solid-earth systems such as aquifer systems, geologic frameworks, landforms, energy and non-energy mineral resources, and geologic hazards.
Select a letter to view definitions of geologic terms beginning with that letter courtesy of Cengage Learning.
Geology tutorials on various topics from plate tectonics and rock formation to mineralogy and structural geology.
The history and practice of archaeology, great archaeologists and resources devoted to it's study.
USGS, the United States Geological Survey dedicated to the timely, relevant, and impartial study of the landscape, our natural resources, and the natural hazards that threaten us.
Animations and videos from the United States Geological Survey.