05/30/2026
1,000 years ago a Thunderbird Effigy Mound was created by the Woodland Indians. These Indians were ancestors to the Alonguin Tribe. This effigy is located on the land owned by Pat and Dave Casper whose foresight to preserve the land for generations is to be commended.
Another important element to the Casper Bluff Effigy Mounds is that all 3 realms of the belief system of the Woodland Indians is present at Casper Bluff and nearby The Thunderhawk Effigy at Casper Bluff, the Bear Effigy at Keough Effigy Mounds representing themiddle plane and the Galena River representing the under realm all clearly demonstrate system of the Woodland Indians. another importance of the Thunderbird effigy at Casper bluff mounds is at the Thunderbird effigy is one of only 2 Thunderbirds in the state and is currently being protected the Jo Daviess Conservation Foundation and the Illinois Archaeological Society.
A third significant element to the Casper Bluffs Mounds is presence of conical and linear mounds which are thought to to have been used to bury the dead and their possessions.
oOher mounds in the area can be viewed at Gramercy Park in East Dubuque, Mill Creek Mounds outside Elizabeth and Dixon Mounds in Fulton county.
Take the time this summer to visit these wonderful places and pay homage to the Native Americans who were here long before anyone else.
Interviews provided by Jeff Horn,
Phil Millllhouse, Dave and Pat Casper and help from teachers, Michael Dittmar
River Ridge Wildcat High School students who are responsible for the creation of this video are: Joshua Crist, Taegen Ertmer, Kelsey Finn, Corey Wachter.
This video was posted to YouTube in 2013.
An Illinois History Fair Project created by students at River Ridge...