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Hartley Fort State Preserve

Hartley Fort State Preserve is a 2-acre (8,100 m2) Iowa state preserve located on the Upper Iowa River in the Driftless Area, in Allamakee County of Iowa.


  • Geography 1
  • Native Americans 2
  • Access 3
  • See also 4
  • Sources 5


Hartley Fort State Preserve sits on a terrace about 80 feet (24 m) above the Upper Iowa, seven miles (11 km) upstream of the confluence with the Upper Mississippi River.

Native Americans

The site is notable for remains of a fortified Native American effigy mound settlement. The mound builder peoples era ruins seem to be associated with the Woodland period Oneota and Cahokia cultures.


The Iowa Hartley Fort State Preserve land is privately owned, and there is no public access currently.

See also


  • Hartley Fort State Preserve, pg. 69seeIowa Preserves Guide -
  • Minutes of State Preserves Advisory Board, June 13, 1994
  • Federal Register, March 25, 2004 (Volume 69, Number 58) Retrieved July 16, 2007
  • Theler, James L. and Boszhardt, Robert F. "The end of the effigy mound culture: The late woodland to Oneota transition in southwestern Wisconsin", Midcontinental Journal of Archaeology, Fall 2000, Retrieved July 16, 2007
  • - Iowa Department of Natural Resources - Retrieved July 16, 2007 -

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