Big Sioux Prehistoric Prairie Procurement System Archaeological District

Big Sioux Prehistoric Prairie Procurement System Archaeological District is a discontiguous historic district of 30 sites located along 15 miles (24 km) of river terraces and blufftops in Lyon County, Iowa. The sites are both large and small in size and they "contain a representative sample of the best preserved elements of a hunting and gathering system" of the native peoples who inhabited the northwest Iowa plains from 10,000 to 200 years ago.[3] They include late base camps, deeply-buried early Archaic camps, and procurement sites from all time periods in the Pre-Columbian era. The district was listed on the National Register of Historic Places in 1989.[2]

Big Sioux Prehistoric Prairie Procurement System Archaeological District
U.S. National Register of Historic Places
U.S. Historic district
Location	Address restricted[1]
NRHP reference No.	88001169[2]
Added to NRHP	January 17, 1989

References

1. Federal and state laws and practices restrict general public access to information regarding the specific location of this resource. In some cases, this is to protect archeological sites from vandalism, while in other cases it is restricted at the request of the owner. See: Knoerl, John; Miller, Diane; Shrimpton, Rebecca H. (1990), Guidelines for Restricting Information about Historic and Prehistoric Resources, National Register Bulletin, National Park Service, U.S. Department of the Interior, OCLC 20706997.
2. "National Register Information System". National Register of Historic Places. National Park Service. July 9, 2010.
3. "IV. Evaluating the Significance of Archeological Properties". National Park Service. Retrieved 2016-06-02.