Exploring Maps - Location: How do we know where we are?
http://egsc.usgs.gov/isb//pubs/teachers-packets/exploringmaps/


This interdisciplinary set of materials on mapping from the United States Geological Survey (USGS) teaches learners basic map-making and map-reading skills and how maps can answer fundamental geographic questions: "Where am I?" "What else is here?" "Where am I going?"