Grades Kindergarten to 5:

Berenstain, Stan and Jan.   The Berenstain Bears' Nature Guide.  New York: Random House, 1984.

Cherry, Lynne.  A River Ran Wild.  New York: Harcourt Brace and Company, 1992.

Hussong, Clara.  Nature Hikes.  Racine, Wisconsin: Western Publishing Company, 1973.

Stutson, Caroline.  On the River ABC.  Niwot, Colorado: Roberts Rinehart Publishers, 1993.

Grades 6-8:

Castaldo, Nancy F.  Riverwild: An Activity Guide to North American Rivers.  Chicago: Chicago Review Press, 2006.

Dunmire, Marj.  Not Even Footprints.  Estes Park, Colorado: Pegasus Graphics, 1987.

Lagemann, Robert and Manucy, Albert C.  The Long Rifle.  New York: Eastern Acorn Press, 1993.

Grades 9-12:

Bourne, Russell.  Rivers of America: Birthplaces of Culture, Commerce, and Community.  Golden, Colorado: Fulcrum Publishing, 1998.

Constantz, George.  Hallows, Peepers, and Highlanders: An Appalachian Mountain Ecology.  Missoula, Montana: Mountain Press Publishing Company, 1994.

Franks, C.E.S.  The Canoe and Whitewater.  Toronto: University of Toronto Press, 1979.