most of the effigy mounds were built in 1050.
most of the effigy mounds were built in 1050.
when were most of the effigy mounds built?
1050
Na
Na
effigy mounds national monument









































effigy mounds national monument preserves more than 200 prehistoric mounds built by native americans. numerous effigy mounds are shaped like animals, including bears and birds. these were built mostly in the first millennium, by peoples of the woodland culture. in 2017, they were featured in the america the beautiful quarters program.









































the monument is located primarily in allamakee county, iowa, with a small part in clayton county, iowa, in the midwestern united states. the park's visitor center is located in harpers ferry, iowa, just north of marquette.









































section::::mounds.
effigy mounds national monument