Iowa Time Machine ⏰: On October 25, 1949, President Harry S. Truman signed a presidential proclamation to create Effigy Mounds National Monument. At the time, the 1,000-acre monument consisted of today’s South Unit, including the Marching Bear Group, and today’s North Unit, including the Little and Great Bear Groups of mounds. Effigy Mounds National Monument preserves more than 200 prehistoric mounds built by pre-Columbian Mound Builder cultures, mainly in the first millennium CE. Shaped like an

42 reactions · 13 shares | Among the ancient mounds, Native American history and culture comes to life when you visit the Effigy Mounds National Monument. | Travel Iowa | Facebook

Questions linger about northeast Iowa's Effigy Mounds National Monument. A Luther College researches shares what he's learned about the mounds using remote sensing technology. Read more: https://www.kcrg.com/2025/11/26/luther-college-professor-studies-ancient-effigy-mounds-reveal-hidden-details/ | KCRG-TV9

182K views · 755 reactions | Allamakee is home to Effigy Mounds National Monument, Yellow River State Forest, Driftless Area Scenic Byway, Iowa Great River Road, and Driftless Area Education & Visitor Center. Visit Allamakee County | Travel Iowa | Facebook