The Wayback Machine - https://web.archive.org/all/20080709014954/http://www.nps.gov/learn/eereadinglist.htm
National Park Service
Interpretation and Education - the place for teachers and learners of all ages, park fun, and Junior Rangers collage: boys examine organisms found on the beach; a ranger shows children the many layers of sand beneath their feet

ENVIRONmental Education Reading List

Arbor Day Foundation

 

Trees are Terrific.updated annually. check www.arborday.org

Activity book and curriculum mateirals related to trees

Archer, Cheryl

 

 

 Snow Watch. Illustrated by Pat Cupples, Kids Can Press, Toronto 1994.   Activity guide

Armstrong, David Michael

 

   Lions, Ferrets, and Bears, A Guide to the Mammals of Colorado. Unknown Binding, 1993.   Field Guide

Arnold, Caroline

 

   Saving the Peregrine Falcon. First Avenue Editions, 1985   Book. Topic: Birds

Arthur Carhart Nat'l.