CEDAR GLEN WINTERING BALD EAGLE COMPLEX AT LOCK AND DAM 19, MISSISSIPPI RIVER. Thomas C. Dunstan. Department of Biological Sciences, Western Illinois University, Macomb, IL 61455. In 1970, Cedar Glen, a 4-acre "bowl" formed by erosion in Keokuk limestone bluffs of Valmyrian Age, and a total of 182 acres of mixed hardwood forest, were purchased by the Illinois Chapter of the Nature Conservancy in cooperation with Western Illinois University as the nation's first dedicted and managed bald eagle night roost for migrating and wintering bald eagles. Reserach and management at the site has continued through the winter of 1998 and involved: 1. Additional land acquisition; 2. No- trespass seasons and zones; 3. Vegetation management; 4. Artificial perch structures; 5. Eagle habitat use; 6. Eagle food habits and foraging behavior; 7. Eagle population characteristics and dynamics; and 8. Eagle interactions with humans. The presentation chronicles the 30-year history, and details the development of the present 1,800-acre Bald Eagle wintering complex and multiple use area from River Mile (RM) 358 upstream to RM 364.5 at Lock and Dam 19, Keokuk, IA and Hamilton, IL. Keywords: bald eagle, Mississippi River, night roost, chronicle