Effigy Mounds National Monument
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Effigy Mounds at a glance
- Best time
- April–May, September–October
- Trip length
- Half day–1 day
- Don't miss
- Main Effigy Mounds highlights — see Things to Do for current listings
- Nearby city
- Harpers Ferry, IA
Explore this park
About Effigy Mounds National Monument
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.
No current NPS alerts
The National Park Service has no active alerts listed for Effigy Mounds National Monument. Conditions change quickly — check again before you go.
Source: National Park Service (as of Nov 10, 2026). Official Effigy Mounds National Monument page on nps.gov
Weather Information
All four seasons are represented in this area with summer temperature in the upper 80’s with higher heat indexes due to humidity and winter daytime highs in the 20's. Temperatures are in °Fahrenheit.
Operating Hours
Park Hours
Park trails are open daily from dawn to dusk.
- MondaySunrise to Sunset
- TuesdaySunrise to Sunset
- WednesdaySunrise to Sunset
- ThursdaySunrise to Sunset
- FridaySunrise to Sunset
- SaturdaySunrise to Sunset
- SundaySunrise to Sunset
Common questions
Planning Effigy Mounds National Monument
The summary above covers timing and highlights. These go deeper on reservations, crowds, and logistics.
Reservation rules vary by season and activity for Effigy Mounds. See Overview on this page for fees, timed entry, and campground details before you travel.
