US Geological Survey
Northern Prairie Wildlife Research Center
The Great Plains organization provides individuals, organizations, and governments with key information about the Great Plains environment through a resource pool of publications, reports, and government data.
University of California
Ucmp: The Grassland Biome
A good site to begin your study of grasslands as it gives clear definitions of terms and an explanation of how the grasslands came into existence.
Other
Great Plains Nature Center
Click around in this site from the Great Plains Nature Center for some wonderful pictures and information about the Great Plains. Check the Flora and Fauna section for easy-to-read content on such animals as the bison, fox, squirrel; and...