American Memory, the Library of Congress' "gateway to rich primary source materials relating to the history and culture of the United States," offers this gem of a site on exploration and land use in the US. These historic and recent maps will be of great interest to ecologists, as they show "changes in the landscape, including natural and man-made features, recreational and wilderness areas,...

Planners, geographers, historians, and environmental scientists all relish the possibilities inherent in a good set of aerial photographs. Such photos can inform curious parties about land use change, ground cover, riverine geography, and a number of other topics. This collection from the Kansas State University Libraries is just the perfect resource to explore these matters. The user interface...

The National Humanities Center has recently added a second guide to its TeacherServe site (originally reviewed in the November 7, 1997 Scout Report). Nature Transformed: The Environment in American History contains a number of essays specifically tailored to classroom use. These are organized in three thematic sections: Native Americans and the Land, Wilderness and American Identity, and The Use...