The Sierra Club guide to the natural areas of Colorado and Utah
By: John Perry and Jane Greverus Perry ; [illustrations by Nancy Warner].
Contributors: Perry, Jane Greverus.; Sierra Club.
Publisher: Sierra Club Books
Published: 1985
Place of publication: San Francisco
Language: eng
Number of pages: 316
Subjects: Natural areas -- Colorado -- Guidebooks.; Natural areas -- Utah -- Guidebooks.
Notes: Includes bibliographies and index.