Casper Bluff Land & Water Reserve

Not only does Casper Bluff Land & Water Reserve boast some of the most commanding views of the Mississippi River and its backwater sloughs, it is also an archaeologically significant site. The 85-acre site contains the Aiken Mound Group, named for the nearby community of Aiken. Our knowledge of these mounds stems from 1900, when William Baker Nickerson, an amateur archaeologist who worked for the railroads, documented 51 mounds at this location: 38 long, wall-like structures, 12 conical mounds, and one thunderbird effigy. Nickerson also observed an earth ellipse or hut-ring and two circular depressions.

Nickerson’s limited excavation of the mounds in 1900 produced pottery fragments, indicating the fill may have come from a nearby habitation site. Archaeologists from the University of Chicago visited the site in 1926; however, only 40 mounds were observed at that time. In 2006, Phil Millhouse from the University of Illinois was able to relocate Nickerson’s original map, kept at the Illinois State Museum. Using GIS technology, the location of all 51 mounds documented by Nickerson have been identified. At the present, however, only 20 mounds can be visually identified on the ground surface. Agricultural cropping and grazing have no doubt affected the integrity of the mounds.

The Aiken Mound Group is part of the larger Effigy Mound culture that existed between A.D. 700 and A.D. 1000 in Wisconsin, Iowa, Minnesota and Illinois. While most of what is known about the site is based on the mounds themselves, there is a possibility that there may still be intact archaeological features among the mounds. Skeletal remains from the Aiken Mounds have been found in adjacent crop fields. Habitation sites, while not mapped, were thought to occur in the nearby low-lying fields east of the steep river bluffs where the ceremonial mounds are located.

While the Effigy Mound peoples are thought to have abandoned the region after A.D. 1000, as late as 1875 members of the Ho-Chunk Nation performed ceremonies in the vicinity of Aiken Mounds and constructed a burial mound for the son of their leader, Green Blanket. This burial site is thought to be located one mile east of the reserve within the bottomlands of Small Pox Creek.

Upcoming Events

Movie Event: Intelligent Trees with Randy Nyboer Speaking

March 2 @ 6:00 pm - 8:30 pm

Do trees have human-like characteristics? That’s the premise of this 45-minute documentary film, which features German forester Peter Wohlleben, and is based on his internationally best-selling book, “The Hidden Life of Trees.” The film will be screened at the Galena Territory Association Owners Club with doors opening at 6, the movie at 7 followed by […] Read More

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JDCF Annual Meeting with Lydia Scott, Director of the Chicago Region Trees Initiative at the Morton Arboretum

March 30 @ 4:30 pm - 8:00 pm

The public is invited to attend JDCF’s annual meeting for an interactive social hour, election and re-election of board members, and the announcement of the recipient of the 2018 Nancy Hamill Winter Conservation Leadership Award.  Our keynote speaker will be Lydia Scott, Director of the Chicago Region Trees Initiative and Manager of Community Trees Program at […] Read More

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JDCF’s Biggest Tree Contest

April 1 @ 8:00 am - October 1 @ 5:00 pm

You may hear people speak of them reverently. You might catch word of a “big tree,” an important tree, a “Champion Tree.” But what does this mean? JDCF is sponsoring a Biggest Tree Contest to recognize the largest tree within each of the designated native tree species that grow in Carroll, Jo Daviess, and Stephenson […] Read More

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Wine & Woodcocks Viewing Party

April 18 @ 6:30 pm - 8:00 pm

Bring a lawn chair, blanket, and beverage of choice and join us at dusk to learn about and view woodcocks at JDCF’s Valley of Eden Bird Sanctuary.  It is a half mile hike to the viewing area and an ATV will be available for those needing assistance. A flashlight may be helpful for the walk […] Read More

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