From the Smithsonian Institution

A focus on volcanoes in the United States.

This has a United States focus.

This report has an international focus.

Extensive collection of maps and tools for both U.S. and international geography.

Univ. of Texas-Austin -- Perry-Castaneda Library Map Collection: well-known and extensive collection of online maps

Free map-making tools from National Geographic

from the Univ. of Portsmouth (UK)

Univ. of Texas-Austin -- Perry-Castaneda collection

Developed by U.S. Geological Survey, this site vontains information about physical and cultural geographic features of all types in the United States, associated areas, and Antarctica, current and historical, but not including roads and highways.

Statistics on global agricultural production, broken down by crop and by country. Provided by the Food and Agriculture Organization of the United Nations.

From the USDA, provides an overview of the marketing and production of different vegetables.

Maps of where certain crops are grown in countries.

Monthly report on crop acreage, yield and production in major countries worldwide. Sources include reporting from FAS’s worldwide offices, official statistics of foreign governments, and analysis of economic data and satellite imagery.

Explore the geographic origins of our food crops – where they were initially domesticated and evolved over time – and discover how important these “primary regions of diversity” are to our current diets and agricultural production areas.