Explore Effigy Mounds, Iowa’s ancient earthworks above the Mississippi

High on the bluffs overlooking the Upper Mississippi River, Effigy Mounds National Monument preserves more than 200 ancient earthen mounds shaped like bears, birds, and spirits of the natural world. Built by Indigenous peoples more than 1,000 years ago, these formations stand as powerful reminders that America’s story stretches far beyond European arrival. At this quiet landscape of forested ridges and sweeping river views, visitors can walk among sacred sites that continue to hold meaning for many Native nations today. Effigy Mounds is both a cultural touchstone and one of the most visually striking archaeological landscapes in the United States.

Location: Harpers Ferry, Iowa

Google Maps: https://maps.app.goo.gl/2WhrGJ8cqh2nsC8L6

Why it matters

Effigy Mounds honors the artistry, engineering, and spiritual traditions of Indigenous communities who shaped these hills centuries before the United States existed. As the nation marks 250 years, this landscape reminds us that America’s story begins long before 1776. The bear, bird and linear mounds — some perfectly aligned with celestial patterns — preserve cultural memory, identity and resilience. They stand as a testament to the first peoples who understood this land as home.

What to see today

Visitors can follow wooded trails to some of the most iconic shapes, including the Great Bear Mound and soaring bird effigies perched above the Mississippi. Interpretive exhibits explain the moundbuilders’ cultures, craftsmanship, and the region’s deep archaeological significance. Listen for wind moving through oak forests and watch eagles ride the river’s currents below. Rangers and tribal partners share stories of ongoing cultural ties, helping visitors understand these earthworks not as relics, but as living heritage.

More: These are 3 of the Most Treasured Views in Iowa. How to find them:

Ask a local

Stop in nearby McGregor for a bite at Old Man River Restaurant & Brewery, where locals drift in for beers and scenic river views or the Backwoods Bar & Grill, a popular spot for casual American pub food.

Plan your visit

• Best time: Fall colors or late spring• Hours/admission: Visitor center open daily; free entry• Getting there: Parking at the visitor center; trails begin onsite• Learn more: nps.gov/efmo

Susan Stapleton is the entertainment editor and dining reporter at The Des Moines Register. Follow her on Facebook, Twitter, or Instagram, or drop her a line at sstapleton@gannett.com.