"This Dynamic Planet" is an interactive version of a US Geological Survey print map which provides detailed information about volcanoes, earthquakes, impact craters, and plate tectonics. Both the front and back of the map can be viewed and printed to include tables of information on topics within Geology; to do this, just click the "printable pages" link. The map itself has zoom and pan features. Users can choose which geological features to identify on the map and print or save the results. Also, the data files used to create the map are available to download.