The Return Through Prairie Country
Space, Time, and Environmental Heritage
This chapter recounts the experiences of Lewis and Clark in the prairies, particularly at the Platte and in the Nebraska countryside. It is argued that the prairie through which Lewis and Clark passed was the product of many ecological events over a long geological history, including continental glaciations and the production of volcanic ash from eruptions, which provided much of the primary material for the fertility of the soil of the Great Plains. People's alterations of the prairie have eliminated large stretches of prairie land, so that we no longer have direct contact or a direct feel for these aspects of our environment.
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