Under the watch of the National Park Service, $3 million worth of illegal construction projects went on for nearly a decade at Effigy Mounds National Monument in northeast Iowa.
Clay Masters Under the watch of the National Park Service, $3 million worth of illegal construction projects went on for nearly a decade at Effigy Mounds National Monument in northeast Iowa.

National Park Service officials approved $3 million in illegal construction projects over a decade that damaged one of the nation's most sacred Indian burial sites in northeast Iowa.

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