Scale approximately 1:2,000,000 (W 122°--W 116°/N 48°--N 45°).
Note
Relief shown by contours and spot heights. Includes text, 5 tables, location map, and graphs.
Bibliography Note
Includes bibliographical references.
Action Note
committed to retain. Federal Depository Library Program (FDLP). For information on our retention commitment, please contact Microforms and Government Information.