This resource from the CIA World Factbook provides a detailed fact sheet of United States. The content covers the country's geography, people, government, economy, communications, transportation, military, and transnational issues. It...

A comprehensive guide to the United States of America including a variety of maps, statistics, facts, and information on history, geography, flags, symbols, travel, and much more.

Provides information about the relationship between the United States and Chile. Additional information about the country is available through the links at the bottom of the page.

For this lesson plan, students will examine the spread of Phragmites, an invasive species, across the Atlantic from Europe to the United States, and look for connections to human navigation patterns, while applying their knowledge of...

Lessons and activities using places on the National Park Service's National Register of Historic Places to enliven courses in U.S. history, U.S. geography, and U.S. government.