Official site with information and resources relating to all aspects of environmental conservation: data, maps and laws. Specific environmental information by zip code provides immediate relevance to your world.

Theodore Roosevelt's presidency had a focus on conservation. This site outlines the first five water projects begun in the early 1900s in the western United States that had a great effect on opening up land for agricultural production.

Lessons for students K-12 in which they study original map of Yosemite National Park, ca. 1935 and explore appropriate human uses of the environment.

Here you can read a fact sheet on South African grasslands. Content includes a look at origins, water supply, plants and animals, economics, and current conservation status.