A map from 1898 of South America showing the general physical features including mountain systems, prominent peaks and volcanoes, river and lake systems, plateaus, and coastal features. The map includes an insert of the Isthmus of...

This resource looks at how geologists are able to measure the movement of tectonic plates using satellite-based data and how they were able to surmise in the past that the plates were moving. It also discusses how to read GPS time-series...

A map from 1898 of Mexico, Central America and the West Indies. The map includes an inset map of Cuba and the Isthmus of Nicaragua. "The surface of the Rocky Mountain highland in Mexico is quite similar to that of the great plateau...