The Little Maquoketa River Mounds State Preserve is a state-owned archaeological site and natural area located within the city of Sageville, Iowa, just north of Dubuque, on U.S. Highway 52.
Significant consultation went on with Native American tribes regarding the establishment of the preserve.
The land was purchased by the Iowa Department of Transportation in 1977, and in 1981, it became a state archaeological and geological preserve.
By agreement with the state, the Dubuque County Conservation Board maintains and administers the area.
The remainder of the preserve functions as a park with a hiking trail, featuring mature forest and a segment of native blufftop prairie.