Your search query has been changed...Tried: (mississippi and river and environmental and conditions and --)
no results found...Tried: (mississippi or river or environmental or conditions)
32000 results found. Sorted by relevance .
Includes bibliographical references (page 47) and index.
Contents
The course of the Mississippi-- The Mississippi in history -- Cities and settlements -- Trade, transportation, and industry -- Animals and plants -- Environmental issues -- Recreation and leisure -- The future.