Little Maquoketa River Mounds State Preserve
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It is high up on a limestone ridge above the Little Maquoketa River, not too far from the river's mouth with the Upper Mississippi River. Covering about 42 acres (170,000 m2), it contains a fenced-in 3-acre (12,000 m2) burial area with 32 mounds. The graves have been related to the Late Woodland culture, about AD 700-1200. 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. As a part of the Driftless Area of Iowa, it has some geologically interesting areas, particularly the high limstone bluffs.
There is a parking lot. Access is year-round.
See also 
- Little Maquoketa River Mounds State Preserve[dead link], Iowa Department of Natural Resources, Retrieved July 20, 2007
- Iowa State Preserves, Iowa Department of Natural Resources[dead link], Retrieved July 20, 2007
- Dubuque County Conservation Board, Retrieved July 20, 2007