General management plan, environmental assessment
Subtitle: draft : Effigy Mounds National Monument, Iowa.
Publisher: U.S. Dept. of the Interior, National Park Service
Published: 1990
Place of publication: [Washington, D.C.?]
Language: eng
Number of pages: 72
Subjects: National monuments -- Iowa.; Effigy Mounds National Monument (Iowa)
Other titles: Effigy Mounds National Monument, Iowa.
Notes: Shipping list no.: 90-470-P.

"June 1990."

"NPS D-13"--P. 72.

Includes bibliographical references (p. 70-71).