US Environmental Protection Agency
Epa: Enviro Mapper Store Front
Lets kids create their own maps, down to the square mile, anywhere in America, choosing various features from water discharges to hazardous waste to roads.
Other
Migration
Learn about the movement of people from one place to another with this informative look at migration. Discover the push and pull factors, migration into Europe, and the main types of migration.
Other
Virginia Places: What Determines the Boundaries of a Region in Virginia?
Although this site talks about regions in Virginia, it offers excellent information on regions in general, for example, ways regions might be classified; e.g., by population density, geology, watershed, ecosystem, economy,...
PBS
Pbs: American Experience: Mass Exodus From the Plains
This site is from PBS.org explaining the migration of people out of the plains during the dust bowl. Use this article to learn all about the reasons people left and where they went.