| Turkey River Mounds State Preserve | |
|---|---|
  Location of Turkey River Mounds State Preserve in Iowa Show map of Iowa Turkey River Mounds State Preserve (the United States) Show map of the United States | |
| Location | Clayton,Iowa, United States |
| Coordinates | 42°43′11″N91°02′54″W / 42.71972°N 91.04833°W /42.71972; -91.04833 |
| Area | 62 acres (25 ha) |
| Elevation | 761 ft (232 m)[1] |
| Established | 1968 |
| Governing body | Iowa Department of Natural Resources |
Turkey River State Preserve Archeological District | |
| MPS | Prehistoric Mounds of the Quad-State Region of the Upper Mississippi River Valley MPS |
| NRHP reference No. | 90000774[2] |
| Added to NRHP | May 30, 1990 |
Turkey River Mounds State Preserve is a historic site located near theunincorporated community ofMillville, Iowa, United States. The 62-acre (25 ha) preserve contains thirty-eight of forty-threeNative American mounds located on a narrowPaleozoic Plateau at the confluence of theMississippi andTurkey rivers.[3] They vary in size and shape and are 1.3 feet (0.40 m) to 6 feet (1.8 m) in height. The conical mounds range from 20 feet (6.1 m) to over 100 feet (30 m) indiameter. The linear mounds vary from 80 feet (24 m) to 175 feet (53 m) in length. There is oneeffigy mound in the shape of a panther that is 98 feet (30 m) long and 40 feet (12 m) wide. There are also compound mounds in the preserve. The mounds were constructed during the Woodland period (500BCE and 900 CE). They were used for burials and ceremonial places, and are now protected by law. The preserve is also home to a variety of trees, prairie grasses and flowers.
The mounds were first surveyed in 1885, and Ellison Orr studied them in the 1930s. People fromDubuque, Iowa bought the property in 1934 and gave it to the Iowa Conservation Commission in 1940. Other archaeological surveys were undertaken in 1964 and 1973. It was dedicated as a state preserve in 1968 for its archaeological, geological, and biological qualities.[3] The preserve was listed on theNational Register of Historic Places as ahistoric district in 1990.[2]
| Clayton |  | |
|---|---|---|
| Ceres | ||
| Elkader | ||
| Garnavillo | ||
| Guttenberg |
| |
| Littleport | ||
| Luana | ||
| McGregor | ||
| Mederville | ||
| Millville | ||
| Osterdock | ||
| St. Olaf | ||
| Strawberry Point | ||
| Volga | ||
 | This article about aproperty in Clayton County, Iowa on the National Register of Historic Places is astub. You can help Wikipedia byadding missing information. |
