Folkert Mound Group
National Register of Historic Places

Folkert Mound Group

Steamboat Rock, Hardin County, Iowa
Listed
March 17, 2009
Type
Site
Period
Modern
Ref No.
09000126

About this property

The Folkert Mound Group of Hardin County, Iowa is a collection of 27 prehistoric mounds on the bluffs above the Iowa River, in a variety of shapes, including linear, compound, conical, and an enigmatic cruciform mound. The earliest map of the mounds was made by John Hotopp in 1974, and the mound group was mapped in detail in 2006. The alignment of the cruciform mound is especially interesting to researchers. Horton felt the cruciform mound aligned with the 11th century Crab Nebula supernova. However Lensink felt there was little evidence of this possible alignment. An apparent alignment of the largest conical mound, A, in the south with the end peaks of the cruciform mound, X, and an alignment between Mound X and the end of longest mound, T, has been postulated, but the meaning of these alignments is unknown.

Location

Steamboat Rock, Hardin County, Iowa

Categories

PREHISTORICRELIGIONSOCIAL HISTORY
Sources

Property data from the National Register of Historic Places, National Park Service (public domain).

Description adapted from Wikipedia under the Creative Commons Attribution-ShareAlike 4.0 International License.

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Overview
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The Land
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Geology
The bedrock beneath the site, its age and rock type, reaching back millions of years.
LiDAR Terrain
Laser-scanned terrain that reveals earthworks and old features hidden in the landscape.
Conflict & War
The battles, raids and skirmishes fought near here, across every era of American conflict.
The Civil War
The Civil War on this ground, 1861 to 1865: who held it, and the battles, camps and regiments nearby.
The Soldiers
The men who marched from here in the Civil War, named and traced where the record allows.
Native Heritage
The Native nations who held this land, mapped across time from before European contact to today.
Settlement
Who claimed and held this ground, from Indigenous homelands through the colonial powers to the United States.
The Community
How the town grew, who came, and what kind of place it became, traced through the census record.
Rivers & Rail
The rivers, canals and railroads that connected this place between 1830 and 1911.
Notable People
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Historical Maps
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Finds & Access
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Literature
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Spotlight
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Points of Interest
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Timeline
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Questions about this property

When was Folkert Mound Group listed on the National Register?

Folkert Mound Group was listed on the National Register of Historic Places on March 17, 2009.

What type of historic resource is Folkert Mound Group?

Folkert Mound Group is classified as a site in the National Register of Historic Places.

What is the period of significance for Folkert Mound Group?

The period of significance for Folkert Mound Group is recorded as the modern era, specifically around 1974.

Can I research the history near Folkert Mound Group?

Yes. Aubrey Research reports search National Register listings, battlefield records, land patents, and other primary historical sources within any radius of a US address. A report for an address near Folkert Mound Group will include this listing and all other historical records in the area.

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