The Most Endangered Property program was started in 1995 and implemented to educate Iowans about the special buildings and historic sites that are slowly and gradually slipping away from us.

Preservation Iowa has designated 6 properties for 2014 Most Endangered Designations. The Most Endangered Properties program provides an excellent resource for media coverage and introduces owners of an endangered property to preservation advocates and resources that can help preserve their historic property. For more information about the Most Endangered Program, contact Preservation Iowa at (319) 526-8474 or

Here are the 2014 Most Endangered Properties:
Priester Buildings, Bloomfield, Davis County
Forest Grove #5 School, Bettendorf, Scott County
Beers and St. John Company Stagecoach Inn, West Liberty, Muscatine County
Brooklyn Opera House, Brooklyn, Poweshiek County
Historic Unitarian Church, Keokuk, Lee County
Glenwood Archaeological State Preserve, Glenwood, Mills County

(This article includes the portion of the release concerning the Glenwood Culture.)

Glenwood Archaeology Site, Glenwood, Mills County

The newly designated Glenwood Archaeological State Preserve is a unique natural region that contains hundreds of archaeologically significant sites spanning 13,000 years of indigenous, mid-continental history from pre-European contact Paleoindian, Archaic, Woodland, and Late Prehistoric periods through more recent historic times.

Most outstanding, however, are the remains of an American Indian culture that existed between A.D. 1250 and 1400 during the latter period of the pre-contact era. Archaeologists refer to this period as either the Nebraska phase of the Central Plains tradition or the Glenwood Culture.

The residents of the site were lodge-dwelling hunters and farmers. Their residential earth lodges were comprised of semi-subterranean hearths, extended entryways, subfloor storage pits and an abundance of artifacts. In the past plowing and erosion from present-day farming practices destroyed many of these sites.

The Preserve is unique as many of the important lodge sites are in the lower elevations of the property and have been covered by up to ten feet of topsoil after years of erosion. Having been designated a State Archaeological Preserve probably assures minimal future degradation.

An agreement between the State Preserves Advisory Board (SPAB) and the Loess Hills Archaeological Interpretive Center (LHAIC) Board of Directors expresses the conditions allowing construction of an Interpretive Center on the Glenwood Archaeological State Preserve. The State Preserve and the site are now protected by a thorough management plan now overseen by the Mills County Conservation Board. Support for the Center’s construction has been assured by and with regional Native American communities. Their Holy Men have blessed the site and the plans to construct the Center.

The time required preparing and obtaining SPAB approval, the present lack of financial resources, and a lack of knowledge/familiarity with preservation grants and procedures have prolonged the future construction of the interpretive and learning center.

© 2019 Loess Hills Archaeological Interpretive Center | Site by Hetzel Creative