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Jim Johannsen
Feb 13, 2017 near Galena, IL
Thunderbird Effigy Mound was constructed by Native Americans 1000 years ago, with over a 200 foot wingspan!  

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GemThunderbird Effigy Mound

 1
Galena, IL

South Loop

0.5 mi 0.8 km
 1
Galena, IL
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