Effigy Mounds National Monument
Iowa
Free entry
The mounds preserved here are considered sacred by many Americans, especially the Monument's 20 culturally associated American Indian tribes. A visit offers opportunities to contemplate the meanings of the mounds and the people who built them. The 200 plus American Indian mounds are located in one of the most picturesque sections of the Upper Mississippi River Valley.
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No entrance fee.
Hours
Park trails are open daily from dawn to dusk.
Conditions
Weather now: ☀️ Clear, 65°F
🌫️ 77°/53°
☁️ 78°/56°
🌦️ 78°/60°
Visitor centers
Visitor Center
Not an official safety source — always defer to NPS.gov and rangers for life-safety decisions.
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